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

Name a key which is hardest to turn.

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

What is the word or phrase?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

Replace the question mark with the correct number.

Three playing cards in a row. Can you name them with these clues? There is a two to the right of a king. A diamond will be found to the left of a spade. An ace is to the left of a heart. A heart is to the left of a spade. Now, identify all three cards.