One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

You are trapped into a death trap by the famous jigsaw killer. As usual, a screen flashes in front of you and explains you the trap game. There are 100 pearls kept in a bowl in front of you and an empty bowl. Among the 100 pearls, 50 are white and 50 are black. You can divide them as you like into the two bowls. Once you are done, you will pull a lever, which will turn the room pitch black. The bowls will move and shuffle around. In the dark, you have to pick up one pearl from any bowl. Once you do that, the room will flood with lights again. If the peral you have in your hand is white, you will be allowed to live, but if the pearl you picked is black, the room will be filled with poisonous gas and you will die. How will divide the pearls to increase your chances of survival?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

Why is it against the law for a man living in Delhi to be buried in Mumbai?

I cannot talk, but I always reply when spoken to. What am I?

Whats the next number in the below number sequence pattern.

I add 5 to 9 and get 2. The answer is correct, so what am I?

When is the top of a mountain similar to a savings account?