I look at you, you look at me, I raise my right, you raise your left. What am I?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

Suppose that you are trapped on the surface of a frozen lake. The surface is so smooth and ideal that there is no friction at all. You cant make any grip on the ice and no wind is blowing to help you out. You have just a mobile phone with you which has got no reception disabling you to call for help.

How will you plan your escape before you freeze to death on the frozen lake?

You can see three almost identical images below. Can you spot the odd one out from them?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

What word does this rebus represent?

meta meta
meta meta

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Once while in his court, King Akbar asked Birbal to write something on a wall that makes one sad when read in good times and makes one happy when read in sad times.

He took only a few moment and wrote something that fit the requirements. What did he write?

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?