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

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

Can you find the dog hidden in a group of pandas?

What Adam and Eve do not have but the rest of the people have?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notes. All boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?