What occurs twice in a week, once in a year but never in a day?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

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?

Can you Find and name the hidden bird in the picture below ?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?

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

which number am I?

Can you count the number of triangles inside a triangle?

Can you find out the number that should replace the question mark with a valid reason?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside.
The man said, "Oh! I am really sorry, I thought this was my room."
He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man.
What made her suspicious of that man? He might have been genuinely mistaken.