Is it permissible to sell computer programs although I am afraid that they will use them for sinful purposes and that I may incur a burden of sin as a result of that, or am I not responsible for what the purchaser does after he has bought it from me?

I have embraced Islam – praise be to Allah – and I have three children; I come from a Christian family that is tolerant of my being Muslim. My question is: how can I introduce Islam to my children, one of whom is eleven years old, the other is eight years old, and my daughter is five years old, without forcing them?

I know that a woman is not permitted to travel without a mahram with her. I would like to know what is meant by (traveling) exactly. Where should we start measuring the distance, from the beginning (a place in the desert), or from where?
My father has a farm on Misr-Ismailia way, and he likes us to visit him every so often, this farm is about 75 minutes maximum from home. Is this considered traveling?
Considering that there are many new cities, schools, companies, and farms along the way.

Is it haraam to make models of kaba and explain the children the rituals of hajj?

Is it permissible to pray in a room when there is someone else in the same room who is watching television, if that person is watching it at a low volume and the program being shown does not contain anything but people who are dressed decently?.

Is it permissible to make phone apps to sell Islamic information? For example, the iPhone mobile phone has a number of apps that are sold via the Apple company, such as the electronic Mushaf, Saheeh al-Bukhaari, Saheeh Muslim, and so on. I would like to make apps like these, that deal with the Qur’an and Prophet’s hadeeths, for the iPhone and iPad, and upload them to the App Store as unique apps.

I am an engineer working for a company. One of the perks that I get in return for my work is a sum of money to compensate me for what I have spent on updating my engineering skills, such as conferences and books. If I do not use the money during one year, the company keeps the money. The company also allows me, as a one-off, to buy a computer without stipulating any maximum limit on the price of this computer. Some of my colleagues who have the same perks bought a computer and gave the invoice to the company to show that they bought this computer, then they returned the computer to the store and took the money and kept it. Is it permissible for me to do the same thing?.

I wasnt aware that ramadan fasts missed due to menstruation had to be made up before nafl ones and I started keeping some nafl ones so is it possible for me to change the intention of the previous nafl ones I have kept or to change the intention of fast during the day? Because the one I kept today for example I started off with the intention of keeping a nafl fast but can I now change this to the intention of making up the ones I missed in ramadan?

I am currently living in Canada for the purpose of study, but my permanent place of residence is between Jeddah and Amman. When I stayed in Amman during the summer break, I decided to go to Jeddah to deal with some official papers, and I intended to do ‘umrah if Allah made that possible for me and if I had a mahram and enough time to do ‘umrah. I intended to do ‘umrah from Jeddah because my mahram would be there. But because I was not certain that I would be able to do ‘umrah, on the day I travelled by plane I did not do ghusl, because I was menstruating and I had not yet decided to do ‘umrah. When I got there on the second day I did ghusl and formed the intention to do ‘umrah from Jeddah, and I did it.
My questions are:
Is my ihram from the miqaat of Jeddah considered valid or not?  Because of my family circumstances, we are always moving back and forth between Jeddah and Amman, and we always enter ihram from our house in Jeddah, even if we are on our way back from a trip to Amman and after staying in Jeddah for several days. We do not remember how many times we have done ‘umrah in this manner.
What is required of us if we should have entered ihram from the miqaat for the people of ash-Shaam (Greater Syria)? After I did ‘umrah I was uncertain as to whether I was completely clean following my period. If I think it most likely that I was still menstruating whilst I was doing ‘umrah, what is the ruling on my ‘umrah and what expiation do I have to offer?.

In our country we have been affected by war and we were expelled from our land 23 years ago. Praise be to Allah, my father and I are settled now and we have a business. We borrowed money in order to settle and start a business, the value of which was 1 million. When we worked out the value of zakaah that we owe on the property and trade goods that we have in our possession, it was estimated to be 7 million, and the trade goods on which zakaah is due are worth 5 or 6 million. 
My questions are: 
1. Are we required to pay zakaah, as we have not paid it all these years because we were not able to pay off the debt of 1 million? Was it correct for us not to pay zakaah?
2. We do not have any cash now, if we are required to pay zakaah. We helped a brother of ours to pay off a debt he owed, so that he could pay off the borrowed amount without paying the interest that had been agreed upon. Is it possible for us to waive this debt and thus pay off the zakaah that we owe?
3. We own some property in the country where the war was, that we took possession of after the war ended, and we are planning to sell this property in order to pay off debts and so that we can buy a house in the place where we live now. Is this property subject to zakaah?.

I am a 24 years old girl. I fell in love, no dates, no meetings involved, pure love to a pure religious person. He promised to marry me and asked me to wait for him as his circumstances are difficult. I do not remember that he called me more than once. I asked him not to call me; because I feel this is wrong, although I love him. I felt that our love started going in the direction, he agreed to this feeling, and respected my opinion. He just sends me E-mails every so often via internet, so that I know his news. We have been in this love relationship for one year. I know this person and his family, and they know us well as well. I love him for Allah’s sake and sure he loves me as well. The problem is that I started receiving proposals, about 8 so far. Every time I refuse because I promised to wait for him. Now I am confused, is what I am doing halal or haram? I pray, Alhamdulillah, all obligatory and optional prayers, and pray qiyaam in the night as well; I fear I lose my good deeds because of what I am doing. Is a pure chaste love haram? Is my love to him halal or haram?.

My question is regarding distributing leaflets/pamphlets for dawah purposes that contain Quranic verses. It is likely that many of them will end up on the streets or bins after being distributed. Isnt this wrong and should this discourage us giving out such material? Also, is this ok, considering that the targeted recipients are non-muslims who are impure?