Why 1729 is a magic number? Answer Logically.

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

John leaves home and then he takes three right turns. John wants to return to home but he was scared of Jacob, who is wearing a mask.

What is John Situation ?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

In the given picture, you can find two letters missing. When two particular letters are placed in the missing spots, you get an eight-letter word while reading in the anti-clockwise direction. Can you find out the missing letters and the missing word eventually?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

What happened when the wheel was invented?