Can you find out who is the kidnapper in below Picture and why, Explain ?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

Can you count the number of squares in the figure below?

You can hear me, but you can't touch or see me.

What am I?

There was a competition where the contestants had to hold something. At the end of the event, the winner was a person who had no hands or feet. What was it that the contestants had to hold?

I am thinking of a five-digit number such that:
The first and last digits are the same, their submission is an even number and multiplication is an odd number and is equal to the fourth number. Subtract five from it and we obtain the second number. Then divide into exact halves and we get the 3rd number.

What number I am thinking of?

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?

What is the coolest letter in the alphabet?

The more of this there is, the less you see. What is it?