Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

I have two coins.
* One of the coins is a faulty coin having a tail on both sides of it.
* The other coin is a perfect coin (heads on side and tail on other).

I blindfold myself and pick a coin and put the coin on the table. The face of the coin towards the sky is the tail.

What is the probability that another side is also tail?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

'Ferrari driver' easily beats the 'force driver' in a two-car race. How did Indian newspapers truthfully report so to look as a 'force drive' had outdone the 'Ferrari driver'? Think!!!

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

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

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?