Our product and our sum always give the same answer. Who are we?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Count the number of lines in the image below ?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

You are an expert on paranormal activity and have been hired to locate a spirit haunting an old resort hotel. Strong signs indicate that the spirit lies behind one of four doors. The inscriptions on each door read as follows:

Door A: It's behind B or C
Door B: Its behind A or D
Door C: It's in here
Door D: It's not in here

Your psychic powers have told you three of the inscriptions are false, and one is true. Behind which door will you find the spirit?

John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking

What is harder to catch the faster you run?

What is red and smells like blue paint?

What brings you down but never up?