Summarized Fatawaa
• What is the ruling on praying while wearing shoes?
All perfect praise be to Allah The Lord of The Worlds, and may His peace and blessings be upon our Prophet Muhammad and upon all of his family and companions.
There is no harm for a Muslim to pray wearing shoes or slippers so long as they are pure, since a man asked Anas Ibn Malik "Did the Prophet (PBUH) use to offer the prayers with his shoes on?" He said, "Yes."
Moreover, Ibn Rajab (May Allah have mercy on his soul) said(What means):" Performing prayer wearing slippers/shoes is permissible according the majority of the Muslim scholars." [Fatih Al-Bary,V.2/P.274]. And Allah knows best.
• Is it permissible to shorten the eyebrows if they get too long?
Yes, it is permissible, but not desirable.
• Should I pick up the newspapers thrown at the street because they definitely contain sacred names?
Praise be to Allah the Lord of the Worlds.
The Messenger of Allah (PBUH) says, "Be mindful of Allah and He will protect you." Part of this is protecting whatever contains the name of Allah. Therefore, if you see a paper containing Allah's name thrown in the street, then you should grab it and similar papers, then burn them in a clean place. Doing so is permissible because Othman (May Allah be pleased with him) has burnt copies of the Quran which didn`t match the main Mus-haf. However, you aren`t required to collect every paper in the street. And Allah the Almighty knows best.
• Is ablution invalidated when blood comes out of the nose, or a wound?
Blood coming out of the nose, or a wound does not invalidate ablution, but it is preferable to make ablution as a way out of the scholars disagreement in this regard.