Various masaail of Salaah

Q: What is the ruling regarding wearing shoes and performing salaah according to the Hanafi madhab? Is it permissible? If so, then under which circumstances etc?

Q: Can salaah be read in the same room in which there is a TV if the TV is switched off at salaah time? Does the position of the TV matter? Can Islamic frames be hung in the lounge when there is a TV in that lounge?

Q: If one suffers from knee pain, can one pray on prayer mats that are softer and thicker at the feet and knees end than the sajdah end, such that the sajdah area becomes lower than the feet and knees?

Q: Can sajdah shukr be done immediately and openly.

Q: Can I offer namaaz while wearing glasses?

Q:

1. Can one pray in front of a mirror?

2. Can one pray in a manner that a mirror is next to him and he is not facing it?

Q: I was sitting after performing salaah when I noticed that there is a black, sticky substance on my foot through which water could not pass. It was the size of a whole round fingernail, and I had not seen it before.

Then, my brother told me that he saw it since 3 or 4 days on my foot. I had also led jamaat during these days. Will I have to repeat all the salaah that I had offered on these days? Will those who followed me in jamaat also have to repeat their salaah?

Q: If I use a miswaak before performing salaah at home alone, will I still get the reward of 70 times more as if I were to perform the salaah in the musjid?