An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

A man dies of old age on his 25 birthday. How is this possible?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?