10 people came into a hotel with 9 rooms and each guest wanted his own room. The bellboy solved this problem.
He asked the tenth guest to wait for a little with the first guest in room number 1. So in the first room, there were two people. The bellboy took the third guest to room number 2, the fourth to number 3, ..., and the ninth guest to room number 8. Then he returned to room number 1 and took the tenth guest to room number 9, still vacant.
How can everybody have his own room?

Spot 5 differences in two Christmas tree below:

Which wheel of car does not rotate when you turn your car right?

Five thieves looted a bank and they ran away in a car. The bank staff informed the police and they began the search of their car in their jeep. They found them on a road and chased them eventually catching them. The light that is used to fill the number plate was broken on the thieves' car. Also, the headlights of the jeep police were not working. How were the police able to catch the thieves then?

Solve the equation in the image by looking at the pattern closely.

Which is the rope you never skip with?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

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

What kind of band never plays music?