Find the number of triangles in the given figure?

In the following problems, a square transparent sheet with a pattern is given. Figure out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line.

Question Figure

Which answer figure will complete the question figure?

Question Figure

How many cubes are there of which three sides are coloured ? 

Question figure

Form the given, which answer figure can be formed by folding the figure given in the question?