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

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?

In which direction should the missing arrow point?

I am a prime number.
The double of myself is equal to the square of me.

which number 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?

Identify The phrase in the picture.

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

Can you find out the missing number in the grid?

Make a sentence consisting of three words that have the whole alphabet.

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?