Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

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

What am I?

How can one talk without saying a single word?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

There is a hypothetical state between the USA and Mexico border 'Tango'.
Here 70 percent of the population have defective eyesight, 75 percent are hard of hearing, 80 percent have Nose trouble and 85 percent suffer from allergies, what percentage (at a minimum) suffer from all four ailments?

What is the fastest way to double your money?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

ENEMY = 2 * LINK
LINK + 2 = HELL

Then what will be TAXI + HELL? Select from the options below:
a) ROTTEN
b) DANGER
c) HEAVEN
4) MORTAL

What's the only room from which no one can enter or leave