I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

John is now two fifth of his older brother's age and two years from now he will be half of his older brother's age.
Two years ago, John was only one-fourth the age of his older brother age at that time.

How old is John now?

What building has the most stories?

There was a blind beggar living on the footpath of a street. Suddenly one day, the beggar's brother died. What was the relation of the blind beggar with the person who died?

PS: Brother is not the answer.

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

Prove that twice of ten is the same as twice of eleven.

When does a USA Potato change its nationality?

Before reading ahead, you must know the fact that only one of the people here is telling the truth.

A says that B is lying.
B says that C is lying.
C says both A and B are lying.

Can you find out who is speaking the truth?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?