I’m 110 lb & not very strong. How to start and start seeing results soon?
If you’re going to workout. I suggest getting some dumbbells. They’re really worth it because there are so many exercises that work on different parts of your body. I don’t do push-ups or pull-ups, of course, that doesn’t mean you don’t have to. Oh, and set yourself a workout routine. But base it around what you want to get the most out of. I do a Monday-Friday based workout, with my bicep/tricep workouts on Monday, Wednesday and Friday (these are just examples, they’re not the only parts of my body I work out on on those days). With the not so important ones on the Tuesday and Thursday. (Hopefully you get what I mean).
Don’t work on the same part of your body every single day. Your muscle grows during the resting period, not during the workout itself. Leave at least 24 hours before working on your stomach/other body parts again.
Work out in sets, that means: 10-12 reps, 1 or 2 minute break, followed by another 10-12 reps (etc.). Set your own sets, I do on average 4, although with my bicep workout I switched the set number up to 5 after 2 weeks.
I’ve been working out for almost three weeks now, and my muscles are noticeably different. Of course it’s different with everyone with varying testosterone levels and stuff. If I were you, I’d get into the mind-set of your muscles be considerably bigger/different after a month or two. ‘Cos then if you do notice anything after a couple of weeks, you’ll be really happy, I certainly was. (At the moment, I’m using 3KG weights, not a lot, but it works 
.
If you continue to work out for a few months, remember to change your routine around, your body will get used to the same workout, so changing it will ensure good results.
Here’s a good site with animations for the excerises: http://www.sport-fitness-advisor.com/dumbbellexercises.html
Hope this helps