For minimal equipment: 1. Get one standard 1 inch dumbbell (or 2, but 1 is already enough for a start) with matching 1 inch plates, e.g. a pair of 5, 2.5 and 1

For minimal equipment: 1. Get one standard 1 inch dumbbell (or 2, but 1 is already enough for a start) with matching 1 inch plates, e.g. a pair of 5, 2.5 and 1.25 kg to start with. You can add a dipping belt for weighted pullups. 2. Optionally, a kettlebell bar for the same weights, something like this: https://www.amazon.co.uk/dp/B00B1DO6CS https://www.amazon.co.uk/dp/B00B1DO6CS it will need more weight plates sooner For your actual questions: 1. With the above the easiest to train are arms: overhead press, curls, rows, arnold presses. On a bed maybe skull crushers for abs, maybe some basic deadlifts and squats. The latter need much more weight but it's a start. 2. You will notice your strength increasing in a few weeks and might see something in the mirror after a month or two. 3. Protein mixed with milk in a shaker cup is the easiest. You can add peanut butter for extra calories if you need it. Only other supplement I recommend is creatine monohydrate, ideally before a workout. 4. I think you will eventually want to join a gym and do the "big three": bench press, squats and deadlifts. It's much more fun too. I got to 120, 140 and 220 kg on those.