How to find intersection points of some graphs and distance between graphs?

Hello,

1.  How to find the intersection points for the below graphs (the red points)?

2. How to find the intersection points for the below graphs (the red points)?

3. How to find following distance between the two peak of blue graph, and between the one peak of the blue graph and one peak of the orange graph from below?

Mathcad Prime 8 file attached.