How can you tell a raw egg from a hard-boiled egg?

Which word does the below Plexor means ?

Count the squares in the matchstick puzzle below?

A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony:

There are one thousand lockers and one thousand students in the school. The principal asks the first student to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth student does this to every fourth locker, and so on. After the process is completed with the thousandth student, how many lockers are open?

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?

What do you call a fish without an eye?

I always drive my customer away.

Who am I?

Where do you go to learn how to make ice cream?

There is something which is always coming but never arrives?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?