There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?
Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?
On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.
Can you tell me how many 20-paisa and 25-paisa he got?
Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?
x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10
A cricket has 6 legs, a squirrel has 4 legs and a spider has 8 legs.
In a local zoo, it was found that the total number of legs is 612. Also, there are equal number of each of the above animals/insects.
Can you find out how many animals are there in the zoo?
There is a straight highway. Four different villages lie on that highway. The distance between them is different. The third village is 60km away from the first village; the fourth is 40 km away from the second; the third is 10 km near to the fourth that it is to the second.
Can you calculate the distance between the fourth and the first village ?
Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?
Two trains start at the same time, one from Bangalore to Mysore and the other from Mysore to Bangalore. if they arrive at their destinations one hour and four hours respectively after passing one another, how much faster is one train running than the other?
There is a hypothetical state between the USA and Mexico border 'Tango'.
Here 70 percent of the population have defective eyesight, 75 percent are hard of hearing, 80 percent have Nose trouble and 85 percent suffer from allergies, what percentage (at a minimum) suffer from all four ailments?
Can you find out which number multiplied by itself will give the output as 12345678987654321?
A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result.
Can you find how bias is the floor in this case?
The day before the 1996 U.S. presidential election, the NYT Crossword contained the clue “Lead story in tomorrow’s newspaper,” the puzzle was built so that both electoral outcomes were correct answers, requiring 7 other clues to have dual responses.
