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

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

Can you name an animal whose killing cannot be performed without spilling your own blood?

By what process could you make a 'Tea-Table' into food?

There was a strange boy who was born before his father. How can this be possible?

A donkey is behind another donkey
I'm behind that second donkey
But there is a whole nation behind me

It is a murder you can describe in a word.

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.

Which is faster, Heat or Cold ? Explain.

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?