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?

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

A fresh card pile is taken out of a box (the pile has 54 cards including 2 jokers). One joker is taken out and then the cards are shuffled for a good amount of times. After shuffling, two piles are made by dividing that one pile.



What is the possibility that one of the piles will have a card sequence from A to K in order?

Replace the 'X' with any mathematical symbol to make the expression equal to 111.

18 X 12 X 2 X 3 = 111

What time is it when an elephant sits on a fence?

If 21x = 79x, what is the value of x?

Why do you find that most of the buildings are deprived of the 13th floor?

What is harder to catch the faster you run?