I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

You are trapped in a room with two doors. One leads to certain death and the other leads to freedom. You don't know which is which.
There are two robots guarding the doors. They will let you choose one door but upon doing so you must go through it.
You can, however, ask one robot one question. The problem is one robot always tells the truth, the other always lies and you don't know which is which.
What is the question you ask?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

What can you serve, but never eat?

If,

A = 1

B = 2

C = 3

...

...

Z = 26.

Based on above rule, you need to find an eleven letter word whose letter sum is equal to 52.

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.

What can go up a chimney down, but can’t go down a chimney up?

What is the next shape from answers A, B, C, and D figure?