Is it true that anyone who does not accept that kuffaar are kuffaar is a kaafir himself, even if he prays, believes in the Qur'aan, and the Prophet Muhammad? If so, what is the proof for this? Can a person insist on believing that Jews and Christians can be believers and go to heaven after being shown clear evidence against this, and still be considered a Muslim?

There is a Quran out which is called "Quran pen reader 9" which helps you better your tajweed and you can listen to different reciters and when you press the Quran with the pen they give it says it out loud the verse you have pressed and you can pick different reciters so you can remember it and correct your tajweed and the Quran it self has interactive buttons on the side like e.g tafsir of the ayah ,which qari you want to chose ,change the level of volume and pick which language you want etc
I wanted to know do I still read this Quran like a normal Quran and will I get the same reward of reading this then a normal one were this one helps me correct my mistakes and makes me understand the Quran more and it is the full Quran with just it being interactive and I was thinking will this be a sort of bidah? But theres more benefit in this as I have mensioned everything this does for the improvement of understand and correct my tajweed and knowledge in the Quran ?

Is it valid to read Qur’aan from the computer instead of from the Mushaf ?
In other words, reading from websites on the Internet or from text files that contain the entire Qur’aan, which is displayed on the computer screen. I work in a company and during my breaks I read Qur’aan on the computer.
Is it necessary to have wudoo’ for this kind of reading, as is the case when reading from the Mushaf?.

What is sincerity, and what are the benefits of sincerity?

What is the difference in meaning between Allah's names al-Rahman and al-Rahim?
 

What is your response to the one who says that so long as the Muslim has an atom’s weight of faith in his heart, he will enter Paradise even if he commits zina during his lifetime? 
What do you say to the wife who betrays her husband by committing the immoral act of zina for the sake of sexual pleasure?.

How should we call people to Islam?

One of the guys at work was asking me why I became Muslim and I told him it is the path I must follow. I don’t know sometimes what I should say, for me it is the path I must follow. What can I say to someone; I don’t want to push what I believe, so how should I answer someone if asked, what is the right way to answer the questions? Sometimes I feel I don’t give the right answers... Any clues as to what I can say?

Will a person (a believer) be rewarded if he listens to the Qur’aan without understanding what he is listening to, but he knows that it is Qur’aan? Or will he not be rewarded unless he understands what he is hearing? I hope you could give some evidence from the Qur’aan and saheeh hadeeth.

I used to be very sinful, my most beloved hobby was to sin. I used to take drugs (hashish, pills, and wine) and I used also to commit adultry.
By Allah’s grace, I repented from the sin of adultry before marriage but the sin of taking drugs remained. It was because of the bad companions I had. Then one of my cousins died, he was of similar age to me. But he was not married, I thought about my situationand that someone who is younger than me has passed away, and we were comitting the same sin togeather, taking drugs.  
Allah has guided me by His grace, so I gave up all sins, I even broke the satellite dish. My life has changed 180 degrees. I became charitable, pray, call people for good and denounce evil, distribute tapes and booklets and attend lectures.
The problem:

I face criticism, starting from family, mother and sisters, that I am strict. They want to listen to songs and watch series on television. If I advise them and say that what they are doing is haram they say: “why is istighfaar (seeking Allah’s forgiveness) prescribed?, If you do not want to listen to songs and watch television then leave, we want to watch and listen” the same problem happens at work as well, I have left home more than one time, my wife stays with them, I take her with me when I leave, but they ask me to let her stay with them. I refuse and my wife feels embarrassed and fears her situation causes any problems. But when I leave her with them, she sits far from TV and from where they sit.  Sometimes I hear my mother making du’aa against me saying: “I wish Allah did not guide you, you made us restless” I seek refuge with Allah from what she says.

My problem at work is, that I work in a military sector, all colleagues are bad, the religious ones are only three, there are six bearded brothers. They get over so many things, the rest of them take hashish and drugs, flirt women and majority are of course smokers.

They all agreed on insulting me, whenever I sit with them, they remind me of my past. They mock the bearded brothers, slander them and describe them as (liers and terrorists) and I feel jealous for them and say: “you are slandering your brothers, they are muslims, you should not mock the beard because it is sunnah to keep it”. Sheikh, they gave me bad reputaion, they always critisize the bearded brothers, they never mention anything good about them.

Is letting my beard grow, abiding by sharia, enjoining good and denouncing evil in this time a crime that I have to pay for, or become immoral like them?
Even my boss, he says: “you bearded men, I will put you under the misoscope, I will not forgive any mistake you do”

I have tried some solutions:
Firstly: I asked to move to another administration, but my request will take some time.
Secondly: I cut my relationship with everyone insulted me by a word or an action. This helped limit the problem. But I do not like this way, as people became careful when they deal with me and fear that anything they say may be disliked by me. So they dislike me and make others dislike me as well.
I wish you provide me with the suitable solution for my problem because I became really tired of it.

Is it Correct to pray without wadoo immedietly after coming from a normal bath.

We celebrate the birthday of Prophet Muhammad (peace be upon him). On this day, we read a lot of salutations on him and engage in a lot of prayers to Allah. We try to show our love for our Prophet (peace be upon him). How come you say we cannot do it?