John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

The more you take me, the more you leave me behind.
Who Am I?

Why is it very easy to weigh a fish?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

We have arranged an array of numbers below. What you have to do is use any kind of mathematical symbol you know excluding any symbol that contains a number like cube root. You can use any amount of symbols but you have to come up with a valid equation for all of them.

0 0 0 = 6
1 1 1 = 6
2 + 2 + 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

Can you count the number of quadrilaterals in the picture below?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

Count the number of squares in the picture below.

Can you write down eight eights so that they add up to one thousand?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?