What is black when you buy it, red when you use it, and gray when you throw it away?

What is the word or phrase below?
R | E | A | D

What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

Can you find out which options fits best with the missing column?

Can you count the number of quadrilaterals in the picture below?

A pack of cards has 40 cards. You are blindfolded. Out of 40, 25 cards are facing down while 15 are facing up. You have been asked to divide this pack of cards into two decks - so that each deck contains an equal number of face-up cards. Remember, you are blindfolded.

How will you do it?