Tahaarat

Q: How should one ensure that water has reached the inner part of the ears during ghusal? Is it sufficient for one to make khilaal of the ears?

Q: Please may the general ruling on 'circumstantial evidence' relating to the Soor (leftover) of animals be explained. I heard an example of a bowl of milk and a dog, but I cannot remember the particulars. We have cats at home and I am unsure when to consider something pure or as makrooh soor (leftover). If appropriate, please may the milk/dog example also be given.

Q:

1. I have cavities in my tooth, and when I eat, food gets stuck. When I rinse my mouth or use miswak, it's still stuck. But when I brush my teeth, it easily comes out. Should I brush my teeth before I perform wudhu everytime I eat, or is it okay for the food to be stuck in the cavities?

2. Is it permissible to have dental fillings so that food doesn't get stuck, or is the filling regarded the same as stuck food? If it is permissible, is there any specific type which should be used as a filling? For example, the fillings come in gold, porcelain, a composite resin (tooth-colored fillings), and an amalgam (an alloy of mercury, silver, copper, tin and sometimes zinc).

3. Sometimes, the food eaten comes back to mouth unintentionally. When this happens, does wudhu break? What about fast?

Q: After urinating, when rinsing the private area with a hand shower, the pressure of the water is satisfying. Sometimes, I get really aroused, which follows a discharge. Is this counted as masturbation? Do I have to perform ghusl? 

Q: I want to ask a question about husband and wife relationship. If they perform romance, do touching with hands on each others parts, just touch ones parts to the others part, then before next prayer is it necessary to take a shower to be clean or shower is not compulsory?

Q: Is it permissible to tan elephant skin?

Q: Can one wear an amulet with Quranic verses on it in the toilet? How can you explain to some one who insists that they must wear it all the time, even in the bathroom?

Q: If a boil busts somewhere on your body and you only find out after the blood has dried on your clothing. If there is little blood, then do you consider that the the blood would not have flown out of the the wound and that you still have wudhu?

Q: I am currently abroad and I have been doubting everything recently. I was recently told that theres a potential of lard (pig fat) being used in the making of bread here in some of the bakeries. My friends eat that bread because they are non Muslims.

My question is, if they were to eat the bread which is a dry entity and then touch me with it after they are done, would I become najis, or does impurity only travel through wetness? 

Q: I was wondering if you can make wudhu in the shower while having a shower (naked) without being in the state of janabah? If so then what are the steps for it?