Why Aeroplane windows are round?

Which is the rope you never skip with?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Which wheel of car does not rotate when you turn your car right?

During which month do people sleep the least?

I can turn polar bears white.
I can make anyone dance.
I can make everyone cry
I can make your hands clap
I can make you thin.
I can make you smile.
I can make you smile

Can you guess the riddle?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

Which is heavier: a ton of bricks or a ton of feathers?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?