What's the best place to go shopping in the ocean?

When does a USA Potato change its nationality?

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

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?