Any showing the flag of England, or anything English for that matter...
scarification is illegal in Scotland.
No. Since he is 16 it would be considered child porn and illegal.
No you can take pictures
Yes, sending pictures of underwear or lingerie may be considered illegal depending on the context. Sending unsolicited explicit images can be considered harassment or even a criminal offense in some jurisdictions. It's important to always obtain consent before sending any kind of intimate images.
Yes.
No.. it is illegal.
no
Absolutely not.
Knuckledusters are classified as an offensive weapon and are illegal throughout the UK (which includes Scotland).
For some pictures yes, and for others no. It is illegal to use copyrighted images for your own purposes. It is also illegal to search for, store, and view certain images like child pornography. If the image is in the public domain and is not obscene, then you can use the pictures.
It is illegal to sext or text porn pictures
That depends on what you mean by stock market pictures. There are a wide variety of stock market pictures available on the internet, but taking pictures with in an area where stock are being traded could be illegal without consent.