There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

How many triangles can you find in this given picture?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

A donkey is behind another donkey
I'm behind that second donkey
But there is a whole nation behind me

It is a murder you can describe in a word.

You walk into a creepy house by yourself. There is no electricity, plumbing, or ventilation. Inside you notice 3 doors with numbers on them. Once you open the doors you will die a particular way. Door No.1 You’ll be eaten by a lion who is hungry. Door No.2 You’ll be stabbed to death. Door No.3 There is an electric chair waiting for you. Which door do you pick?

Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

You have three buckets with a capacity of 4 litres, 8 litres and 10 litres and you have a large tank of water. Now you have to measure 3 litres of water precisely using those buckets. How will you do it?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

Find the next number in the sequence

5 12 24 36 ?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?