Spots on one's underwear

Q: When I get up in the morning, I see some little spots on my underwear. I am unable to decide if these are the spots of mani or any other liquid.

But I can give some detail about I experiences related to this problem:

  1. I see these spots daily.
  2. I feel nothing all night and no wet dream.
  3. When I wash my private part, it seems like something oily is applied on the top of it.
  4. These spots are white.

​Please tell me if I have to make ghusal daily or just change my underwear after cleaning my private part?

Gargling the mouth and cleaning the nose while fasting

Q: 

  1. A person begins fasting in the state of janaabat. Regarding ghusl in this state, is the ghusl valid if the water does not reach the inside of the throat or the inside of the nose (i.e. these actions cannot be exaggerated out of fear of the fast breaking)? Will the ghusl be valid if the water did not reach deep into these areas? Or would the person make ghusl washing the nose and mouth as in wudhu and upon breaking the fast would the person then gargle the throat and wash the inside of the nose properly?
  2. A person forgets that they are fasting, and thus gargles and washes the nose intensely so that water is accidentally swallowed. Is the fast broken, bearing in mind that the person forgot that s/he was fasting?

Qadha Salaah after fajr and after asr

Q:

  1. Can Qadha salaah (esp. Qadha Umri) be performed after the fardh of fajr and asr? If so then what salaah are not permitted at that time?
  2. On safar, a person does not perform a salaah e.g. asr. On returning home from the journey, does one perform qasr (i.e. 2 rakaats qadah) or 4 rakaats of qadah?
  3. Likewise, if a person omits a salaah e.g. asr in his hometown, whilst on safar does the person perform 4 rakaats of qadah or 2  rakaats of qadah for the salaah missed whilst still at home?

CCTV's

Q: The process adopted in live video streaming is no different to any other conventional picture. The only difference is that it is being captured and reproduced in such quick succession through modern day technology that one feels that one is watching it as it's happening, whereas this is not the case..... This was part or your response to a question. The thought just passed through my head what about cctv cameras? In the office, shop and home? Is it jaiz to have it?