Riddles for Math Clubs Hungry for Challenge

📐 Give mathletes a reason to grin between proofs.

These riddles for math clubs combine logic leaps with number play for warm-ups, contest practice, or STEM nights.

I am two more than twice 15. What am I?

You add me to myself and divide by 4 to get 5. What number am I?

I’m a rectangle with area 48 square units and width 6. What is my length?

Three consecutive even numbers sum to 48. What are they?

I am a prime number that becomes composite when reversed. Between 10 and 30, who am I?

A cube has a volume of 64 cubic units. What is the length of one edge?

What is half of 3/4?

If a pattern goes 5, 9, 13, 17, what number comes next?

A regular hexagon has interior angle sum equal to how many degrees?

What do you get when you multiply any number by zero?

If x + y = 10 and x - y = 2, what is x?

How many diagonals does a pentagon have?

One pizza is cut into 8 equal slices. You eat 3. What fraction is left?

I’m a number whose square is 144. What numbers am I?

The probability of rolling a 3 on a fair die is what fraction?

🎓 Use these riddles for:

Challenge students to write their own riddle after each session—peer puzzles keep the club buzzing.

Ready to Test Your Brain?