What is the definition of gheebah and what is the ruling on it?

I have repented. But in my possession are some forbidden things such as musical instruments, cassettes, films, etc. Is it permissible for me to sell them, particularly since they are worth a large amount?

If the sin involves the rights of another person then what form should repentance take?

I am a young Muslim man who believes in Allah and His Messengers and His Books, praise be to Allah. But sometimes I feel too lazy to pray. I am looking for a solution and a way to make me not be so lazy. Please note that this is what I want but the tricks of the Shaytaan are too strong.

I am from a Muslim background, but I never used to offer the obligatory prayers and even when I tried to pray once, I did not do it right. In other words I did not prepare to do it in the proper manner. I ask Allah to forgive me. I heard that the one who does not pray is a disbeliever and is not a Muslim, but whoever offers the five daily prayers, or one or two of them and omits the rest, is regarded as a Muslim. Also, I did not pay zakah on my wealth, but for at least two years I have completed the fast of Ramadan, and I intend to continue doing so. I want to learn how to pray and make it part of my life, along with other acts of worship. 

Is it obligatory for me to pay zakah for all these many years (when I did not pay it), and to make up the days that I did not fast at the time when I was not praying? 

Please note that I have now reached the age of thirty-one years; perhaps you will understand that this may cause me a great deal of hardship; to ward off that hardship, can I start over? Will Allah forgive me if I do that?

Is repentance from a particular sin acceptable while I am a victim of another?

I was just wondering if someone says he will drink and do zina (fornicate) and do haram (unlawful) stuff and then he will repent, will his repentance be accepted?

What are the signs of Allah's love for His slave?

When traveling via airplane which direction should one pray? Assuming that due to conditions on the plane the proper direction cannot be ascertained.

How do we as Muslims living in the west maintain an Islamic Education for our children. Primary and secondary education up to the age of 15/16 may be provided in Muslim schools (which are also very expensive), but as for Higher Education there is no such Islamic Institute. 

Even on the secondary school level on the agenda of Curriculum, we do not have books that deal with the branches of knowledge that are available in secular institutes, such as; Political science, Sociology, Psychology, Pedagogy. Please advise on how we should go about bringing about an Islamic Education system for our Youth in the west (bearing in mind that it is near impossible for us to migrate to Arab/Muslim countries because of the restrictions on immigration etc.).

I forgot that I did not have wudoo' and I prayed. After I finished my prayer, I remembered that. Do I have to repeat my prayer?

What should one who is informed about the correct direction of the qiblah during a prayer?