How can you drop a raw egg from a height onto a concrete floor without cracking it?

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

Find out the missing number in the picture attached:

Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

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

what does this below rebus represent identXQQQQQME