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

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Who has married many women but was never married?

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?

Who is that with a neck and no head, two arms and no hands? What is it?

You see me once in June, twice in November, and not at all in May. What am I?

Jessica is telling her friends this story and asks them to guess if it’s the truth or a lie: “There was a man sitting in a house at night that had no lights on at all. There was no lamp, no candle, and no other source of light. Yet, he sat in the house and read his book happily.” Her friends say she’s lying, but Jessica corrects them and says she’s telling the truth. Jessica’s story is true—but how?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?