Why are all black people so quick ?

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?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

Which word does the below Plexor means ?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

What has to be broken before you can use it?

Can you replace the question mark with the correct number?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

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

What will you call your mother's brother's brother-in-law?