How many times do a clock's hands overlap in a day ?

What occurs twice in a week, once in a year but never in a day?

What does this rebus mean?

O
N
C
E
TIME

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

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

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

Can you name an animal whose killing cannot be performed without spilling your own blood?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Three people are in a room. Ronni looks at the Nile. The Nile looks at Senthil. Ronni is married but Senthil is not married. At any point, is a married person looking at an unmarried person? Yes, No or Cannot be determined.