Why do we preferably have round manhole covers and not square ones?

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

A man dies of old age on his 25 birthday. How is this possible?

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

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

There is an ancient kingdom where every married woman keeps information regarding the fidelity of other men. However, what they don't know is the fidelity of their own husbands. Also, there is an ancient belief that they don't tell each other about the fidelity of their husbands.

On a certain day, the queen of the kingdom declares that she has identified at least one unfaithful man in the kingdom. She allows the wives to identify and gives them authority to kill their husbands if they are unfaithful at midnight.

How will the wives manage it?

Can you make four (4) nines (9) equal 100?

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.