How many times can you subtract the number two from the number fifty?

I have feet, but no legs. Which animal Am I?

You can see three almost identical images below. Can you spot the odd one out from them?

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?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

The first person saw the bridge step on it and crossed,
the second person saw the bridge did not step on it but crossed,
the third person did not see the bridge did not step on it but crossed.
Who are these people?

After undergoing a successful eye operation, A blind girl has just boarded a train to her home. The doctor asked her to open the bandages after 3 hours. On her train journey, she opened the bandages and within a fraction of the time she commits suicide by jumping off the train.

Though her operation was successful, Why did she commit suicide?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

Can you fill the blank with the correct number?

6 30 870 756030 _____