During which month do people sleep the least?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

Next Number in the Series,

5, 16, 49, 104, ?

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?

A woman lives in a skyscraper thirty-six floors high and is served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

Here is what you have to do. You have to throw a ball as hard as you can but it must return back to you even if it does not bounce at anything. Also, you have nothing attached to the ball. There is no one on the other end to catch that ball and throw it back at you.

How will you do it?

What have one eye but still cannot see?

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