John is the son of Jacob.
So,
Jacob is the_____of John's father?

Can you move 2 matchsticks to form four equal sized squares.

Count the number of balls in picture below:

What question can you never answer yes to?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

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.

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

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

What has a ring but no finger?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?