I have a few questions 1- When I am making a gallery

Hi
I have a few questions

1- When I am making a gallery in post the photos go in a row – and that is find in desktop.
But, is there a way to that the photo will go in a Column when using mobile phone? The screen is less wide and the photos look lees good.

If there is no way, is there a way to redirects mobile phone users to a different page? (Not making the all site mobile, just few pages)

2-if the file of a photo is to big and mobile user press on the photo the all page become white, do you know solution to this problem?
for example (it happen in ios and android)
http://www.hanutk.co.il/sport/%D7%90%D7%A1%D7%99%D7%A7%D7%A1/

3-do you know a way to make the text that is written below the photo bigger?

4-do you know good plugin or a good way to do graphs?

Thank you