There are three light switches outside a room. One of the switches is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.

You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)

Your task is to then determine which switch controls the bulb?

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

I am lying and I always lie. Tell me whether I am lying or telling the truth.

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

I cannot talk, but I always reply when spoken to. What am I?

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

People put me on the table and cut me but do not eat me. What am I?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?