What is the coolest letter in the alphabet?

Can you count the number of triangles inside a triangle?

Solve the counting riddle by identifying the number of triangles in the given picture.

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

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

which number am I?

In the given picture, you can find a square in the centre and four open squares. Can you form three closed squares by just moving three sticks from their positions respectively?

In the picture given below, can you find out which digit will take place of the question mark?

Count the number of lines in the image below ?

What is both possible and impossible at the same time?

What do you get if you add 2 to 100 four times?