I am a prime number.
The double of myself is equal to the square of me.

which number am I?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

Count the number of balls in picture below:

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

What kind of band never plays music?

This is a picture puzzle. You have to guess the name of the movie that can be related to the picture.

John is looking at Jenifer, but Jenifer is looking at Jacob. John is married, but Jacob is not.

Is a married person looking at an unmarried person ?

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?

I have branches, but no fruit, trunk or leaves. What am I?

Do You See It?