Is information made of matter?

I've never studied physics but I have a lot of questions about it, please humor me if you have the time.

I'll give two examples.

1- information is saved in computers as numbers. Those numbers appear as a picture on our screen. Are those numbers matter? Do they have energy?

2- just as information is stored in computers, it's also stored in our brains. When we think of an apple, we use that information to create a mental image of it. So where is that mental image? It's not physically existing in our brains as a projection, it's more like a mental image in our mental mindscape? Is that image made of matter? And where does it physically exist?

Are our thoughts made of matter? Of energy? They have to be made of something. Where does the energy come from? What's the threshold?

Am I just thinking about it all wrong?