Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

Rahul decided to meet Simran so he boards a local train from Bombay station. Just after the station, there is a 1km long tunnel. The train starts and is now accelerating. Rahul is a claustrophobic guy, so what is the best position for him to sit?

Bobby and Wilbur decided to take their respective car out of the garage and race. None of them cheated and they both stood at the start time and decided to cover a distance in full throttle. The first to reach the mark was to be declared the winner.

Upon reaching the finishing mark, they found out that Bobby's car was 1.2 times faster than Wilbur's. Now, Wilbur had reached the mark about 1 minute and 30 seconds later than Bobby. Bobby's car reached the mark of 60 MPH on average.

Can you calculate the distance between the starting mark and the final mark with the help of the given data?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Do you know who was buried in John's tomb?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

Can you find out the total number of triangles in the given figure?