A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?

what does the below rebus means?

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

What do you get if you add 2 to 100 four times?

Why do you find that most of the buildings are deprived of the 13th floor?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

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

My location can be determined by the below rebus.
So where am i ?

I’m tall when I’m young, and I’m short when I’m old. What am I?

Move three sticks of the spiral below to form a square.