What is next number in the pattern below:

131 517 192 123 ?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

The current time can be represented by below textual rebus.

0
=========
B.Sc
LLB

Can you tell us the current time?

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?

If 21x = 79x, what is the value of x?

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

What does below rebus means ?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

81 x 9 = 801. What must you do to make the this equation true?

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?