Numbers + Operations
Integers & Signs
Fun Riddles
Maths(ish) Riddles
Mystery Maths
100

What is 12 x 8?

96

100

5 – 9 = ?

-4.

100

 What goes up but never comes down?

Your Age.

100

Which is heavier: 1 kg of feathers or 1 kg of bricks?

Equal.

100

What’s ¼ of 100?

25.

200

Simplify 48 ÷ 6:

8

200

–3 + 7 = ?

4.

200

What has many keys but can’t open a lock?

A Piano.

200

A farmer has 17 sheep and all but 9 run away. How many remain?

9.

200

Simplify: 2x + 3x

5x.

300

A GAA team scores 3 goals and 7 points. How many total points?

16 points.

300

–8 – 5 = ?

-13.

300

The more you take, the more you leave behind — what am I?

Footsteps.

300

I am an odd number. Take away one letter and I become even. What am I?

Seven.

300

What number is missing? 2, 4, 8, 16, __ ?

32.

400

4 players share €48 equally. How much each?

€12 each.

400

(–4) × (–3) = ?

12.

400

A cowboy and his horse go into town on Tuesday and stay for one night. He returns on Friday, how?    

The horses name was friday.

400

What has a face and two hands but no arms or legs?

A Clock.

400

The average of 6, 8, 10 is ?

8.

500

If your team doubles its score each round, and starts with 2 points, how many after 4 rounds?

32.

500

(–10) ÷ 2 = ?

-5.

500

Two fathers and two sons went fishing. They caught 3 fish and shared them equally. How?

It was grandfather, father, and son (3 people).

500

If 3 cats catch 3 mice in 3 minutes, how long for 100 cats to catch 100 mice?

100 minutes.

500

I am a number. Double me and add 6 to get 18. What number am I?

6.

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