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

Who always enjoys poor health?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.

What is wrong in the below Picture?

What can you hold in your right hand, but never in your left hand?

In which direction should the missing arrow point?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

It was a dark stormy night and a couple were in a car driving madly to a city. The car broke down and the husband had to go get help from someone who spoke his language. He was afraid to leave his wife alone in the car so he locked the car before leaving. When he came back, the car was in the same state as he had left it but his wife was dead, there was blood on the floor and there was a stranger in the car. What happened?

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?