Why is the Hole below a Lock?

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

Can you replace the question mark with the correct number?

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

What is always in front of you but can’t be seen?

I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

Two Twins Jack and Jill were standing back to back and suddenly they started running in opposite direction for 4 kilometres and then turn to left and run for another 3 kilometres.

what is the distance between the Baggio twins when they stop ?

I don't get anymore wetter, no matter how much rain falls on me.