What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

What has 88 keys?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

The more it dries, the wetter it becomes. Can you tell what it is?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

The Judge knows that Alamgir was killed by his girlfriend Jasline, but the judge is unsure whether to punish her. Why?

There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notes. All boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day