Solution:

You might be laughing by looking at the answer now. This is how you would have trashed the figure if you were unable to solve it right? But did you know that this could possibly give you the required solution?

Solution:

Remove the same 2 matchsticks from each figure and move figure towards left 45 degrees, It forms the letters V W X Y.

Solution:

XIX is the answer which refers to nineteen in roman numeric system. On taking out one i.e. I, we will get XX that is equal to twenty.

Solution:

2100 miles.

Each vowel equivalent to 500 and each consonant equivalent to -200

Solution:

This can be done if you draw a five pointed star and place the balls on the corners and intersection points. See the figure to understand better.

Solution:

For this answer is 3^0, 3^1, 3^2... That is 1,3,9,27,81,243 and 729.

Solution:

Treasure Map Is Hidden Inside The Hanging Room Floor.

Explanation.
Just reverse the text "roolF mooR gnignaH ehT edisnI neddiH sI paM erusaerT".

Solution:

prinka is 10, in a system that awards five for each vowel.

Solution:

7 Races.

Solution:

It can surely be true because it is not mentioned that it was raining.

Solution:

The attached picture gives away the solution. If you can find another solution, do send us yours.