What is both possible and impossible at the same time?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

How many times do a clock's hands overlap in a day ?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Which letter of the alphabet has the most water?

what does this below rebus represent identXQQQQQME

No one wants to have it, but if one got it, he does not want to lose it. What is It?

You have $100 with you and you have to buy 100 balls with it. 100 is the exact figure and you can't go below or above the numbers and you have to use the entire $100. If there is no kind of tax applied how many of each of the following balls will you be able to buy:

Green Balls costing $6
Yellow Balls costing $3
Black Balls costing $0.10

Now, how many of each must you buy to fulfil the condition given?

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?