What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

Take one out and scratch my head, I am now black but once was red. What am I?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

I can be cracked, made, told, and played. What am I?

Can you quickly find which two matchstick figures are identical?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?