There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Identify the hidden meaning behind this picture?

Replace the question mark with the correct number in the below-given picture?

Spot what is wrong here in below Picture?

Why do people go to bed?

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?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

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

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?