Using Only Five 5's and any mathematical operator make sum as 37

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

What 5-letter word typed in all capital letters can be read the same upside down?

Which Travels Faster? Solve below famous picture riddle:

I am quite hot but become too cold if you remove the first two letters. What am I?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?