Can you find out the missing number in the grid?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

If you say my name, I will no longer exist. What am I?

Buy me, smell me or deliver me, I do not change.

Who am I?

Look at the picture and find out which square is not linked with any of the other squares.

When can we add 2 to 11 and get 1 as the correct answer?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

The host of a game show, offers the guest a choice of three doors. Behind one is a expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

A newspaper is supposed to have 60 pages, but pages 24 and 41 are missing.
Which other pages won't be there?