What does this rebus puzzle means ?

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?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

One day Jenifer meets the Lion and the Tiger in the Forest of Forgetfulness. She knows that the Lion lies on Mondays, Tuesdays, and Wednesdays, and tells the truth on the other days of the week. The Tiger, on the other hand, lies on Thursdays, Fridays, and Saturdays, but tells the truth on the other days of the week. Now they make the following statements to Jenifer:

Lion: Yesterday was one of my lying days.

Tiger: Yesterday was one of my lying days too.

What day is it?

In the image below, can you find the value of an angle(y)

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

What 5-letter word typed in all capital letters can be read the same upside down?