You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

A man is trapped in a room. The room has only two possible exits doors. Through the first door there is a room constructed from magnifying glass. The blazing hot sun instantly fries anything or anyone that enters. Through the second door there is a fire-breathing dragon. How does the man escape?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

Can you solve this picture maths equation?

Give it food and it will live; give it water and it will die.

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

I look at you, you look at me I raise my right, you raise your left. What am I?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

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?