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?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

Can you replace the question mark with the correct number in the below table sequence?

Which Travels Faster? Solve below famous picture riddle:

You are confined in a room and given two metal rods. Out of these two rods, one is magnet and the other is the iron rod. They look starkly similar. You don't have any other metal object in the room.

How will you decide which one of those is magnet?

What demands an answer, but asks no questions

What has many keys but can’t open a single lock?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

What will you call your mother's brother's brother-in-law?