You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

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 walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Can you make a six-letter word using the letters N, A and B ?

How can you take 2 from 5 and leave 4?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

What does this rebus means ?