What has lots of eyes, but can’t see?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

A tourist visits a small town for his research. While in the town, he decides to get a haircut. Since the town is quite small, there are only two barbers in the town � one on the North Street and one on the South Street. The barbershop on the North Street is a mess and the barber has a weird and pathetic haircut. While the barbershop at the South Street is pretty tidy and the barber as well has an impressive haircut.

Which barbershop will the tourist visit for his haircut and why?

What number should come in place of the question mark below?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

I am quite hot but become too cold if you remove the first two letters. What am I?

What is the centre of gravity?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

You are an expert on paranormal activity and have been hired to locate a spirit haunting an old resort hotel. Strong signs indicate that the spirit lies behind one of four doors. The inscriptions on each door read as follows:

Door A: It's behind B or C
Door B: Its behind A or D
Door C: It's in here
Door D: It's not in here

Your psychic powers have told you three of the inscriptions are false, and one is true. Behind which door will you find the spirit?