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

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

What does this rebus puzzle mean?

Can you find the missing rabbit the magician? Remember, you just have 11 seconds to complete the task!

From a pack of 52 cards, I placed 4 cards on the table.

I will give you 4 clues about the cards:

Clue 1: Card on left cannot be greater than the card on the right.
Clue 2: Difference between the 1st card and 3rd card is 8.
Clue 3: There is no card of an ace.
Clue 4: There are no face cards (queen, king, jacks).
Clue 5: Difference between the 2nd card and 4th card is 7.

Identify four cards?

How can you leave a room with two legs and return with six legs?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?