A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

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

A number with an interesting property:

When I divide it by 2, the remainder is 1.
When I divide it by 3, the remainder is 2.
When I divide it by 4, the remainder is 3.
When I divide it by 5, the remainder is 4.
When I divide it by 6, the remainder is 5.
When I divide it by 7, the remainder is 6.
When I divide it by 8, the remainder is 7.
When I divide it by 9, the remainder is 8.
When I divide it by 10, the remainder is 9.

It's not a small number, but it's not really big, either.
When I looked for a smaller number with this property I couldn't find one.

Can you find it?

What does this rebus means ?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

Rearrange the letters in "new door" to make one word.

Which is the rope you never skip with?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

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

Find the hidden tiger in the given optical illusion ?