There are 2 sand hourglasses.
The small one can measure 5 hours and the large one can measure 7 hours.
How can we measure 16 hours with 2 sand hourglasses running together ?
The king of Octopuses has servants who have six, seven or eight legs. The distinguishing characteristics of the servants is that the one with seven legs always lie but the one with either six or eight legs speak the truth always.
One day, four servants meet and converse:
The black one says, 'We have 28 legs altogether.'
The green one says, 'We have 27 legs altogether.'
The yellow one says, 'We have 26 legs altogether.'
The red one says, 'We have 25 legs altogether.'
Can you identify the colour of the servant who is speaking the truth?
I throw two dice simultaneously.
What is the probability of getting a sum as 9 of the two numbers shown?
If 21x = 79x, what is the value of x?
You need to arrange three 7 and mathematical symbols to form number 1?
You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?
What is the below Rebus indicate?
If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?
There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.
If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.
Will you accept that bet?
Decode the movie name from the below picture?
In the 1920s, people feared that crossword puzzles would contribute to illiteracy.