In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?

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?

Find the last number in the series below:

voN luJ yaM raM ---

What is next number in the pattern below:

131 517 192 123 ?

Look at the picture and find out which square is not linked with any of the other squares.

Which wheel of car does not rotate when you turn your car right?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

Why is a river so rich ?

What is the coolest letter in the alphabet?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?