Name a key which is hardest to turn.

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

How can one talk without saying a single word?

What can you hold in your right hand, but never in your left hand?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside. The man said, "Oh! I am really sorry, I thought this was my room." He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man. What made her suspicious of that man? He might have been genuinely mistaken.

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?

How is a fly different from a mosquito?

Can you find a five letter word that is left with only two letters if one is removed?

Replace the question mark with the correct number below.