How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

A girl rode into a tourist spot out of the city on Thursday. She loved the place and decided to stay for a few days. She stayed for four days and then she left for back home on Thursday.

How can this be possible?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

Can you identify the hidden rebus in the image below?

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?

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

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

Decode this picture on T-Shirt and tell what it says ?

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

Replace the question mark with the number below given a simple math problem.