Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

Count the number of triangles in the given picture.

If your uncle’s sister is not your aunt, what relation is she to you?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

John was drowned by he was not wet. How?

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?