What question can you never answer yes to?

why number 8549176320 is one of a kind?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

I am beautiful, up in the sky. I am magical, yet I cannot fly. To people I bring luck, and to some people, riches. The boy at my end does whatever he wishes. What am I?

what does the below rebus mean?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?