Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair

When it is alive we sing, when it is dead we clap our hands. What is it?

On rolling two dices (six-sided normal dice) together, what is the probability that the first one comes up with a 2 and the second one comes up with a 5?

How many times can you subtract the number two from the number fifty?

Replace the question mark with the correct number.

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

They are three errirs in this question. Can you find them?

Using eight eights and addition only, can you make 1000?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?