Imagine a box with two cogwheels, one big with 24 teeth and one small with 8 teeth. The big one is firmly attached to the center of the box which means it does not turn or move while the small one rotates around the big one.

How many times do you think that the smaller wheel will turn compared to the box when it turns once around the big one?

If your uncle’s sister is not your aunt, what relation is she to you?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

When can we add 2 to 11 and get 1 as the correct answer?

If 1+9+8=1, what is 2+8+9?

How many triangles are there in the picture below?