In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

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

What occurs twice in a week, once in a year but never in a day?

As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

There are forty elephants and they have forty-fore heads. How can this be possible?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

Be active and find the killer in the picture Riddle below.

What number comes next in this sequence:
7 8 5 5 3 4 4 _

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

A bridge is about to collapse. There are four people P, Q, R and S on one of the sides. Before the bridge collapses, they want to cross it. Now since the bridge is too weak, it can only stand the weight of two people at a time. Also, it is night time and nothing is visible. They have just one torch with them.

Now P takes one minute to cross the bridge, Q takes two minutes to cross, R takes five minutes to cross and S takes ten minutes to cross.

The bridge will collapse in seventeen minutes. How will they be able to cross the bridge before it collapses?