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?
Can you identify the Oscar-winning movie from the rebus below?
If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?
I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?
John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?
What is the riddle which can be asked all day with a different correct answer each time.
