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Number Puzzles

Part of Math Riddles collection

Explore 655+ unique, interactive number puzzles puzzles.

Fun counting games, prime number riddles, and secret code math challenges.

Interactive Riddle Challenge

Showing Number Puzzles riddles

In a 3x3 grid: Row 1 is 2,7,6. Row 2 is 9,5,1. Row 3...

3,356 solved Number Puzzles

The Triangular Number

What comes next: 1, 3, 6, 10, 15, 21, ?

6,365 solved Number Puzzles

The Binary Count

What comes next in binary: 1, 10, 11, 100, 101, 110, ?

2,860 solved Number Puzzles

The Missing Number

What comes next in this sequence: 2, 6, 12, 20, 30, ?

17,792 solved Logic Math Riddles

The Shape Counter

How many triangles can you find in a triangle divided into 4 smaller triangles...

16,284 solved Geometry Riddles

The Mirror Number

I read the same forwards and backwards: 12321. What is the next palindrome after...

2,243 solved Number Puzzles

The Dark Room Puzzle

You are in a pitch-dark room with a drawer of 10 blue and 10...

8,263 solved Insect Riddles

The Infinite Sum

What is 1 + 1/2 + 1/4 + 1/8 + 1/16 + ... continuing...

17,205 solved Near Impossible Riddles

The Fibonacci Test

The ratio of consecutive Fibonacci numbers approaches a specific irrational number as they grow....

15,611 solved Near Impossible Riddles

Is there always a prime number between n and 2n for any integer n...

8,974 solved Near Impossible Riddles

The Ticking Wrist

I live on your wrist, I have a face with numbers, and I tell...

4,438 solved Number Puzzles

The Step Counter

I am worn on your wrist, I count your steps, monitor your heart rate,...

13,145 solved Biology Riddles

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