What's the only room from which no one can enter or leave

People make me, save me, change me, raise me. What am I?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Which is the smallest number that you can write using all the vowels exactly once?

How can you tell a raw egg from a hard-boiled egg?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

In a picnic session, a footballer was practicing. During his play, he busted lips and ears and broke ribs and thighs. However, he was still able to play a professional match on the very next day.



How can this be possible?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

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?