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:

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:

The wife booked a two way ticket for herself and booked a one way ticket for her husband.

Solution:

There are only four cats. The room is too small and each cat is sitting at the tail of other.

Solution:

Suzie took the 100 toffees from the largest tin and then she kept one of the smaller tin of toffees inside the empty tin. In this manner, when her sister checked, there were still 100 toffees in each of the tins.

Solution:

It is perfectly possible. The sailors were looking across the deck at each other and not at the sea.

Solution:

The smart answer would have been 'I will be quite glad and will take a day off from office to celebrate the happiness with my husband.'

The nature of question is hypothetical and you can answer in the same manner too. Usually the unmarried girls will be shocked at such a question but if you are smart, you can pull it off smartly.

Solution:

The answer is simple. The trains will be at same distance from Point P when they meet speaking on approximation. However, the train A will be closer to the point P by its own length if we are not taking meeting of train as perfectly overlapping.