Make eight squares by moving only two matchsticks. Note- Square can be of different sizes.
Replace the question mark with the correct number. 2 + 2= 4 3 + 3= 18 4 + 4= 48 5 + 5= ?
There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?
Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?
In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?
I have a hole in my back and legs I lack. I live where I can’t breathe and I eat without teeth. What am I?
A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?
It belongs to you, but other people use it more than you do. What is it?
I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?
What number comes next in the series? 5 15 5 18 5 24 14 20 _
Can anyone tell me a word in the English dictionary which has a silent 'z'?
The phrase “thinking outside the box” was popularised from the solution to a topographical puzzle involving 9 dots in a box shape.
