Etiquettes and respect for the Quraan

Q: Is it permissible to hold the Holy Qur'an in the hand while it is hanging downwards?

Q: Can we read Qur'an without wadu?

Q: Is it correct to download Quraan paak application on one's mobile or some quraanic verses?

Q:

1. Can we read Qur'an on any digital device without touching (laptop or on mobile)?
2. Can we can listen to Qur'an during menses?

Q: I had a question regarding kissing the quran and putting it on the forehead if one mistakenly drops the quran or shows disrespect to it then will it be a necessary for him to kiss the quran? If one kisses it, will it be regarded as bidah?

Q: I have noticed in some parts of the world e.g. Pakistan, they lay great importance on not having the Quran behind ones back, to the extent that even if you are at the back of a small musjid and are reading Quran and someone in the first saff is directly in front of you, they would tell you to move and get very angry about it. On the other hand in many other countries sitting directly behind someone's back and reading Quran is not considered wrong. What is mufti sahebs view on this matter of the Quran behind the back?

Q:

1. Is it permissible for someone travelling short distances, such as in a  bus or a train, to read Quran on a laptop or ipad without making Wudhu?
2. When is it not permissible to not recite the Quran even from memory, if under any circumstances?

Q: Can we use Qur'an software on mobile phones?

Q: Should a person be covered when reading or reciting the Qur'an for respect?

Q: Will it be permissible to read the Holy Qur'aan on your mobile phone if you previously viewed filth and haraam on the same phone. That was about six months ago and you have made taubah.