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?

Before Mount Everest was discovered, what was the highest mountain in the world?

One evening there was a murder in the home of a married couple, their son and daughter. One of these four people murdered one of the others. One of the members of the family witnessed the crime.

The other one helped the murderer.

These are the things we know for sure:

1. The witness and the one who helped the murderer were not of the same sex.

2. The oldest person and the witness were not of the same sex.

3. The youngest person and the victim were not of the same sex.

4. The one who helped the murderer was older than the victim.

5. The father was the oldest member of the family.

6. The murderer was not the youngest member of the family.

Who was the murderer?

Decode this picture on T-Shirt and tell what it says ?

When 99 is considered higher than 100?

What goes up but never comes down?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

In which direction should the missing arrow point?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

It is always ahead of me yet I can never see it. What is it?