Kind of good advice. 

What you should really do is eat at the same time every day and don't eat until your full.  Keeping a schedule helps maintain good metabolism and stopping eating before you're full keeps you from eating too much.

I'd rather like to gain weight. I'm around 60kg on 1.70 metres.
I have the advantage that I can anything I want without gaining weight, though. I could around 3000 calories and I would still not get any fatter.

lots and lots of exercise

it was actually horrible advice

Drink more water. Eat more fruits and vegetables. Smaller portion sizes. Minimise salt and sugar intake. Exercise one to two hours daily.

Yeah, eating late is bad; Once I stopped eating after 6-7 I really started losing weight. It's one of the best things to do :)

You don't have enough time to work out or something? Because if you do have the time, the key is to run, a lot. By doing so you'll lose plenty of weight I almost guarentee it.

Nothing...

I've lost 8 kg over the last two years by doing absolutely nothing and I eat quite a lot. Maybe it's because of walking to and from college everyday swell as sports but thats about it.

I plan to lose my belly fat thats popped up so my packs start showing and I reckon a couple of months on the treadmill at gym should do it. I don't wanna lose more weight though.

I had tonsillitis for a week and hardly ate anything for a week. When I went back to work my colleagues couldn't believe how much more skinny I looked. And that was just in a week of not eating much.

Mon- Fri- For breakfast I have a low fat cereal bar and then just drink tea and water all day. When I get home I consume a tin of soup with a slice of toasted wholemeal bread. And then I do this again before I go to bed. Sat and Sun I eat properly. Can't say it's the best diet but it works for me.

I didn't want to completely crush him