If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

Find the next number in the series.
1 10 24 43 67 ?

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

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?