Solution:

Yes it is absolutely possible. Actually Tuesday is the name of his car.

Solution:

Did you concentrate on the point that it was a ping pong ball? Also that you have a water bottle with you. We never mentioned that it was empty. So what you will do is simply empty it in the narrow pipe and the ball will come up floating on the water. All the other things that were mentioned served just as distractions and if you were not able to find a way, they all worked quite well.

Solution:

That person in the picture is the son of the man holding the picture.

Solution:

This is absolutely possible. It happened because only three people went for fishing that day: The son, his father and his grandfather.

Solution:

Draw a pentagonal star. Now place each of the cone at the intersection points and you will get the desired results.

Solution:

The worth of that coin is zero. This is because the B.C. and A.D. dating system was not empowered till the year 525. So the coin is probably fake.

Solution:

It is a tricky question. But it is not a question at all. It is a statement.

What is made up of 4 letters.
Described is made up of 9 letters.
Often is made up of 5 letters.
However is made up of 7 letters.
Rarely is made up of 6 letters.

Solution:

NEELAM.

Explanation:
Just read the car's number upside down and you will know why.

Solution:

You are second in position. When you overtook the second positioned person, you actually took his place and thus you are positioned second now.

Solution:

Trojan evidently was the one buried.