What does this rebus puzzle means ?

When can we add 2 to 11 and get 1 as the correct answer?

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?

On the occasion of Diwali, online seller companies in India are offering a big discount on Iphone14 as below.

: Flipkart offers a Flat 65% discount
: Amazon offers a 10% discount over and over again.
: Shopclues offers RS.45,000 off.

If the original cost of the iPhone is Rs.70,000 Which is the best offer for you?

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

Can you find the key in the picture below?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?