What seven-letter word has hundreds of letters in it?

What does below Rebus say?

XLR8

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

All of you like to eat me. I am a five-lettered word. Remove the first two and I turn into an infamous animal. Remove just the first and I become a heinous crime. Remove the first and the last and you can groove on me.

Can you guess who am I?

What do you see in the image below

What is the below Rebus indicate?

Can you quickly find which two matchstick figures are identical?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

There are two guys standing face to face in a room. On a wall, there is a clock. One of those is a prophet. He tells the other guy that he will be stabbed in the back in five minutes.

Shocked to hear that, the other guy stares at the clock. Just after the five minutes, he is stabbed on the back. Can you tell what happened?