Advent Brain Teasers, Logic Puzzles, and Math Problems 2025

Solve festive Christmas logic puzzles and holiday brain teasers, including code breakers and deduction grids, perfect for an interactive Advent calendar of daily family fun.

Advent Brain Teasers, Logic Puzzles, and Math Problems 2025
Photo by Charlotte Cowell / Unsplash

Last year I had a lot of fun putting together 25 different puzzles for the fun of solving together, so this year, I'm doing the same. I hope you all enjoy them once again as a family!! The target grade levels are Grades 2-5. You can expect to see new content popping up on a daily basis, so check back regularly.

Happy puzzling and have a lovely holiday as a family!

Note: To give credit where credit is due, I used Gemini as a thought partner to help me develop some of these.

Day 1: The Elf Assembly Line 🎁

πŸ” Answers

The pattern adds 3 toys each time. Box 10 will have 29 toys.

Rule: (Box Number Γ— 3) - 1.

πŸ’‘
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Day 2: Tangled Lights πŸŽ„

πŸ” Answers

From shortest to longest it is:Blue, Green, Red, White.

Day 3: Holiday Symbol Puzzle 🧩

πŸ” Answers

  • Step 1: Solve for the Bell (B)
    • 3 times B = 30
    • B = 10
  • Step 2: Solve for the Tree (T)
    • Substitute B=10 into Equation 2: 10 + T x 2 = 26
    • T x 2 = 26 - 10
    • T times 2 = 16
    • T = 8
  • Step 3: Solve for the Wreath (W)
    • Substitute T=8 into Equation 3: 8 + W + W = 18
    • 8 + 2 x W = 18
    • 2 x W = 18 - 8
    • 2W = 10
    • W = 5
  • Step 4: Solve the Final Equation
    • Use the Order of Operations (Multiply first): B + T x W
    • 10 + 8 x 5
    • 10 + 40 = 50

The final value is 50.

Day 4: Squares Upon Squares in Your Wrapping 🎁

Embedded squares riddle

πŸ” Answer

30 squares

  • 1x1 squares:4Γ—4=164 cross 4 equals 164Γ—4=16
  • 2x2 squares:3Γ—3=93 cross 3 equals 93Γ—3=9
  • 3x3 squares:2Γ—2=42 cross 2 equals 42Γ—2=4
  • 4x4 squares:1Γ—1=11 cross 1 equals 11Γ—1=1 

As a bonus, think about if the whole package looks the same and has the same wrapping and pattern, how many squares would the whole package have visible?

Day 5: A Weighty Problem πŸŽ…

πŸ” Answer

1 Elf = 2 Candy Canes

Bag = 3 Elves

3 Γ— 2 Canes = 6 Candy Canes

Day 6: Gingerbread Surface Area 🏠

πŸ” Answer

Area of each triangular piece: 1/2 base x height

Half of 6 is 3, so 3 x 5 = 15

There are 2 triangles, so the area of the two triangles is 30 sq in

Area of base of gingerbread house is 6 x 8 = 48 sq in

Area of 2 long sides of base are 5 x 8 = 40, but there are 2 of them, so double that. 80 sq in

Area of the roof pieces. 6 x 9 = 54, doubled = 108

Shorter wall has an area of 5 x 6 = 30 sq in

Shorter wall with the door is 30 - (3 x 2) = 24 sq in

Put it all together:

30 + 48 + 80 + 108 + 30 + 24 = 320 square inches

Day 7: Secret Message Cipher πŸ”

πŸ” Answer

Plug in the letter for each number... and notice you have to figure out that D is 4 because it's before E.

The message is "Joy to the World!"

Day 8: The Ornament Mystery πŸŽ„

πŸ” Answer

Elf Ornament Location

Pixie Snowflake Tip Top

Jingles Star Top Branch

Tinsel Reindeer Middle Branch

Holly Bell Lower Branch

Day 9: Gifts on All Sides 🎁

πŸ” Answer

6 on the front side and the back side. One on the top and 3 on each side.

6 + 6 + 1 + 3 + 3 = 19 faces

Day 10: Help Rudolph Get Home 🦌

Note: drawing not to scale

πŸ” Answer

Add up all the possible routes to find the shortest path.

Shortest is: 3 + 2 + 6.5 + 4.5 = 16km

Day 11: Fractional Snowflake ❄️

πŸ” Answer

Count the number of total squares, that will be your denominator (144), then count the amount taken up by each color and put that as your numerator. Simplify if you can!

Grey: 6/144 = 1/24

White: 16/144 = 2/18

Blue: 122/144 = 61/72

Day 12: Penguin Organization 🐧

πŸ” Answer

There are 6 different ways:

3 rows of 4, 4 rows of 3, 1 row of 12, 12 rows of 1, 2 rows of 6, or 6 rows of 2.

This could be a good introduction to discussing factors or the commutative property of multiplication.

Day 13: Triangular Tree πŸŽ„

πŸ” Answer

Side 1: 1 + 6 + 2 = 9

Side 2: 1 + 5 + 3 = 9 =9

Side 3: 2 + 4 + 3 = 9

These is also a variation that can give you 11 on each side.

Day 14: Stocking Stuffers 🧦

πŸ” Answer

3 combinations: (Candy/Car), (Candy/Orange), (Car/Orange)

Bonus if you think about the option of two candy canes too!

Day 15: The Icicle Melt Challenge 🌑️ (Part I)

πŸ” Answer

  1. Time to lose 1 inch: 180 drips x 10 secs/ drip = 1,800 seconds
  2. Convert to minutes: 1,800 seconds \ 60 seconds/minute = 30 minutes

Day 16: The Icicle Melt Challenge 🌑️ (Part II)

πŸ” Answer

  1. Total drips to lose 9 inches: 9 inches x 100 drips = 900 total drips
  2. Total time for 900 drips: 900 drips x 5 seconds / drip = 4,500 seconds
  3. Convert to minutes: 4,500 seconds / 60 seconds / minute = 75 minutes
  4. Convert to hours and minutes: 75 minutes = 1 hr and 15 min

Final Prediction

  • Start Time for Part 2: 1:30 PM
  • Time Remaining: 1 hour and 15 minutes
  • Final Time: 1:30 PM + 1 hour 15 minutes = 2:45 PM

Day 17: Puzzling Pentominoes 🧩

πŸ” Answer

Rotate the L shape upside down to place it on the far left.

The Y shape (dark green) should be flipped and at the top.

The S or Z shape will spin around to fit in the remaining space.

Day 18: Candy Cane Patterns 🍬

πŸ” Answer

In pattern 1, it will be the same as the 3rd image. The pattern is an ABC pattern with a flip (reflection) over the y-axis after each ABC.

In patterns 2, the candy cane rotates 90 degrees in each instance and is reflected (or flips) over the axis. The next in the pattern would look identical to the first. Essentially it is an ABCD pattern.

Day 19: Odd Snowball Out ❄️

πŸ” Answer

Hint: Think about multiplication tables.

Answer: 17. (All the others are divisible by 3, but 17 is a prime number).

There could be other potential answers... such as ( is the only one-digit number. Or 9 is the only one without a 1 as one of its digits. Or perhaps 17 because when you add up any digits, it is the only one not divisible by 3.

Day 20: The Herald’s Cipher πŸ“œ

πŸ” Answer

1. Calculate PRINCE: 16 + 18 + 9 + 14 + 3 + 5 = 65

2. Calculate OF: 15 + 6 = 21

3. Calculate PEACE: 16 + 5 + 1 + 3 + 5 = 30

4. The Grand Total: 65 + 21 + 30 = 116

Day 21: Mitten Mystery 🧀

πŸ” Answer

3 mittens. (You could pick Red, then Blue... but then the third one must match one of them).

Day 22: Climbing Mount Mistletoe πŸ”οΈ

πŸ” Answer

It will take Paxon 5 hours to reach the top.

The "Thinking" Behind the Math: Many people see the "up 30, down 15" and think Paxon only gains 15 meters per hour. If you divide 90 by 15, you get 6 hoursβ€”but that’s the "slippery" trap!

Let’s track his progress hour-by-hour:

  • Hour 1: Climbs 30, slides 15. (Current height: 15m)
  • Hour 2: Climbs 30 (hits 45m), slides 15. (Current height: 30m)
  • Hour 3: Climbs 30 (hits 60m), slides 15. (Current height: 45m)
  • Hour 4: Climbs 30 (hits 75m), slides 15. (Current height: 60m)
  • Hour 5: Paxon starts at 60m. He climbs his 30 meters for the hour

60m + 30m = 90m. * He reached the peak! Since he is now standing on the flat summit of Mount Mistletoe, he doesn't slide back down.

Total Time: 5 Hours

Day 23: Everest’s Decorating Dilemma πŸ’°

πŸ” Answer

Everest will have $0.50 in change.

The Step-by-Step Thinking:

  • Step 1: The Tinsel (Unit Conversion)
    • Everest needs 6 yards. Since 1 yard = 3 feet, he needs 6 x 3 = 18 feet of tinsel.
    • At $0.25 per foot: 18 x $0.25 = $4.50
  • Step 2: The Ornaments (Logic & Multiples)
    • Everest needs 10 ornaments, but they are sold in boxes of 4.
    • 1 box = 4 ornaments (Not enough)
    • 2 boxes = 8 ornaments (Still not enough)
    • 3 boxes = 12 ornaments (This covers the 10 he needs, with 2 extra!)
    • 3 boxes at $5.00 each: 3 x $5.00 = $15.00.
  • Step 3: The Total Cost
    • Tinsel ($4.50) + Ornaments ($15.00) = $19.50.
  • Step 4: The Change
    • Everest started with $20.00.
    • $20.00 - $19.50 = $0.50.

Bonus "Thinker" Question: How many ornaments will Everest have left over to give to a friend? (Answer: 2)

Day 24: Silent Night Stars ✨

πŸ” Answer

It's the same as the star right before it. The pattern is an ABBC pattern.

Encourage your child to try to make their own patterns with missing parts to challenge a family member or a friend.

Day 25: Find the Stable, Find Jesus 🀱🏽

πŸ” Answer

Merry Christmas and Happy Holidays!

Both the Shepherds and the Wise Men meet at the coordinate (5, 6).

Hope you and your family enjoyed all of these puzzles! As we wrap up the year soon, I'd just like to say I am thankful for all of your support. May 2026 be a blessed year for you and your family.

πŸ’‘
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