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?

Once upon a time, there was a castle on a square island. The entire island was surrounded by a 14m wide trench. The Romans had wanted to invade the castle and had brought a few wooden planks along with them to facilitate themselves in crossing the moat. The planks were however found to be only 13m long.

The Romans still managed to cross the trench. How did they do it?

When 99 is considered higher than 100?

Can you decipher the two rows to find the hidden word?

Find the missing number in the sequence below:

Keyboard words are not in alphabetical order, Why?

Who can jump higher than a Mountain?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?