I’m tall when I’m young, and I’m short when I’m old. What am I?

If eleven plus two equals one, what does nine plus five equal?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

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?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

Why do Chinese men eat more rice than Japanese men do ?

What does the below rebus riddle means?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

What does this rebus mean?

O
N
C
E
TIME