What always comes into a house through the keyhole?

My location can be determined by the below rebus.
So where am i ?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Find the value of "?" in the ball picture Riddle below:

How many times in a given day, minutes and hour clock comes in a straight line ?

Mother's Name is Mrs. SIXTY TWO
Son's Name is FIFTY TWO
Daughter's Name is FORTY TWO
What is Name of Father?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

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

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?