If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

Replace The Question Mark Below With the Correct Number.

2 {38} 3
4 {1524} 5
6 {3548} 7
8 {????} 9

If an electric train is travelling south, then which way is the smoke going?

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

What has a ring but no finger?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

What type of tree can I carry in my hand?

What can you hold in your right hand, but never in your left hand?

A man is shown a portrait painting. He looks closely, then tells, “Brothers and sisters have I none, but that man’s father is my father’s son!” Who is the man in the portrait?