Working in a computer repair shop

Q: I am a student of engineering and in the last summer vacation I worked in a computer repair shop and I earned money by assisting , installing programs and anti-viruses (paid and free versions ). I also unlocked mobile passwords (may be stolen or not, i was not sure), and broke the anti theft systems of iphones, nokia mobile phones. i earned for about 500$ and from that money i was confused whether it is halaal or haraam. I told the customers that the program was pirated version and still they paid me for installing it. Now is the earnings from installing pirated windows, anti-viruses, and programs haram and if it is then I have already spent all of that money maybe 100$ in mosque and charity, and 130$ watch for my dad ,120$ microwave, then I thought that giving 130$ from my dads money will make it ok to get his watch used by him, hence my father gave me 130$ and I gave that in charity. Now I have a guilty conscious whether my fathers watch is halaal or not, please guide me. Will giving the same amount of money in sadqah of the things I bought from that 500$ will make it halaal. There were times I took money for some services like fixing etc, hence not all money was from pirated software and neither all of it is from unlocking locked smartphones and neither all of it was from pure fixing.

Urine drops

Q: I have a question. After doing istinjaa I always drip 3 or 4 urine drops always. I asked a local mufti here. They are saying you can still make wudhu and pray because when you make istinja, the urine which comes out get diluted (mix) with water and it is paak so you can make wudhu. What is your opinion regarding this?

Islamic finance

Q: My mom is kafir and is asking about Islamic finance. I to be honest don't know much about this subject and have heard that it is not actually so Islamic after all. I live in Australia. Please advice on this matter.

Doubts regarding kufr

Q: I know someone who has bad thoughts, that he does not want, but they keep coming back and now he is confused about a particular situation. He had bad thoughts and he did not intend to say anything, but he worries because when he exhaled he thinks he heard part of the bad thoughts come from his mouth or like a motion on the tongue or he said part of it under his breath without wanting to say that. So the question is : If somebody has a thought of kufr and they said part of it or all of it without intending to or wanting to and they are angered by it, does this count as kufr?

Watching television

Q: Is it kufr if I put on a movie where the actor says "Jesus" or "Oh my God"? Because their is a verse in the Quran where Allah says "and if you hear the signs of Allah being mocked at, then do not sit with them or you will be like them" will it be kufr if I put it on and allow other Muslims to watch it?

Removing impurity from electrical switches

Q:

1. If our impure hands touches the electrical switches can we take a tissue wet it and wipe the switches? Will it become pure?

2. If impure hands touches table etc and there are no visible traces of impurity and then I take some tissues wet it with water and clean the table, will it become pure?

3. How many times do we need to wipe a surface with a wet cloth or tissue to make it pure?