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

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Can you solve the photo plexer logic ?

In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

How can a man go eight days without sleep?

In the following picture, E is going to slide the object down and as per the terrain and the physics, the round object is going to travel all the way till the end. Now, can you analyze who all people will die when it happens?

What is next number in the pattern below:

131 517 192 123 ?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?