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?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

In which direction should the missing arrow point?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Who can jump higher than a Mountain?

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?