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?

Forwards I am heavy, backward I am not. What am I?

What do you answer even though it never asks you questions?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

You have two hour glasses one measures 7 minutes and the other measures 4 minutes.
Using these two-hour glasses, you need to measure exactly 9 minutes.

How come?

What has no start, end, or centre?

Find the last number in the series below:

voN luJ yaM raM ---

You stand in front of two doors. A guard stands next to each door. You know the following things: one path leads to paradise, the other leads to death. You cannot distinguish between the two doors. You also know that one of the two guards always tells the truth and the other always lies. You have permission to ask one guard one question to discover which door leads to paradise. What one question would you ask to guarantee you enter the door to paradise?

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

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