Does a person have to do istinjaa’ (wash the private parts with water) every time he wants to do wudoo’?

What is the rate of Zakaat al-Fitr? Is it permissible to give it after the Eid Prayer? Is it permissible to give Zakaat al-Fitr in cash?

Some mobile phones have a Quraan programs which enable one to read the Quraan anytime on the mobile’s screen. Is Taharah (Purity) a condition before one starts reciting?.

Does diarrhoea make it permissible for the fasting person to break his fast?

Which is more important: dealing with feelings and thoughts that Allaah dislikes, such as destructive envy, hatred, arrogance, showing off, thinking highly of one's deeds, hard-heartedness, etc., which form the evil that resides in the heart, or focusing on doing outward naafil deeds such as prayer, fasting and other acts of worship and fulfilling vows even though those other things are present in the heart? Please advise us, may Allah reward you with good.

1. I would like to know the dividing line between hypocrisy and courtesy, because in many cases I feel that there is some two-facedness in people's behaviour and dealings, based on their interests and whims and desires, and it is said that it is just courtesy. Is this true? 

2. Is it possible for true friendship to be mixed with a little hypocrisy? I have a friend who does not love me as I thought she did. She held a special place in my heart that was shared by no one else, but recently I found out that my status with her is zero, and her behaviour with me for many years was superficial. I thought, and everyone was certain about that, that our friendship was strong, and until now I do not know how to end this friendship after finding out what is really going on. 

3. Can the way this friend behaved be regarded as hypocrisy? 

4. What is the punishment for hypocrisy in friendship?

When a person repents, he makes a vigorous start and says: "The Shaytaan is telling me to slow down", so he does more acts of worship. Then his enthusiasm cools down, and he says: "Allah does not burden any person beyond his scope", and his acts of worship become less until he goes back to the way he was. 

My question: What advice can you give? Should he make a vigorous start, or take a gradual approach until it is established and then add more after a while, or should he follow the saying: "When your wind blows, then make the most of it"?.

Is it permissible to ask the Muslims -when meeting with them- about the state of their faith or their hearts? One of them said to me that this is a matter of the unseen and that it is not appropriate to ask about it.

If one Muslim brother loves another Muslim brother, does he have to say to this brother "I love you for the sake of Allah?

What are our duties towards our Muslim brothers who have been stricken by calamities and disasters throughout the world?

Some scholars of tajweed said that it is obligatory to read Qur'aan with the rules of tajweed. Is that true?