You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

what does this below rebus represent identXQQQQQME

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

10+10 and 11+11 can give you the same answer.

Explain how?

One day Jenifer meets the Lion and the Tiger in the Forest of Forgetfulness. She knows that the Lion lies on Mondays, Tuesdays, and Wednesdays, and tells the truth on the other days of the week. The Tiger, on the other hand, lies on Thursdays, Fridays, and Saturdays, but tells the truth on the other days of the week. Now they make the following statements to Jenifer:

Lion: Yesterday was one of my lying days.

Tiger: Yesterday was one of my lying days too.

What day is it?

What does below chemistry rebus means?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

Can you count the number of triangles in the given picture?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H