You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

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

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

What does this mathematical rebus means ?

What goes through cities and fields, but never moves?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

If one and a half boys, eat one and a half burgers in one and a half hours.

How many burgers can 9 boys eat in 3 hours?

Which number should replace the question mark?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?