I can write cow in 13 letters.

Can You?

I always drive my customer away.

Who am I?

What happened when the wheel was invented?

Can you count the number of quadrilaterals in the picture below?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

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?

Why do we preferably have round manhole covers and not square ones?

Find the last number in the series below:

voN luJ yaM raM ---

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

What is 3/7 chicken, 2/3 cat and 2/4 goat?