If eleven plus two equals one, what does nine plus five equal?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What do you see in the image below

What can you hold in your right hand, but never in your left hand?

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?

Why is it very easy to weigh a fish?

Imagine you are in a room with no windows or doors. How will you get out?

Client Dempsey living in one of the East Coast states of the U.S. was talking to Landon Donovan, who was living in the West Coast state of the U.S.

Dempsey: What time is it?
Donovan: Wow, It is the same time here.

How is this possible?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.