The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.

Can you find out the remainder when 3^300 is divided by 5?

Which is the correct shadow of the bird?

What has hands, but can’t clap?

How could a baby fall out of a twenty-story building onto the ground and live?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

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?

Why is the Hole below a Lock?