How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

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?

It is always ahead of me yet I can never see it. What is it?

How is a fly different from a mosquito?

I look at you, you look at me I raise my right, you raise your left. What am I?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

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?

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?