What has no start, end, or centre?

Replace the question mark with the correct number below.

What English word has three consecutive double letters?

If two's company, and three's a crowd, then whats four and five ?

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.

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

You can see it everyday, But cannot touch it at will. What is it?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside. The man said, "Oh! I am really sorry, I thought this was my room." He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man. What made her suspicious of that man? He might have been genuinely mistaken.

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?