Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

Solve the following series:
AZ, GT, MN, __, YB

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?