How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

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?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

What is the end of everything?

John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

Find the number of squares in the below picture

What does this mathematical rebus means ?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

When 99 is considered higher than 100?