I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

John is looking at Jenifer, but Jenifer is looking at Jacob. John is married, but Jacob is not.

Is a married person looking at an unmarried person ?

When we see 2 but call 10?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

Find out the number of circles in the given picture having Illusion