Tahaarat

Q: Is the following correct and virtue mentioned in Hadith: If you recite Ayatul Kursi after wudhu Allah will give you the reward of 40 years of worship?

Q: I had a night fall but I am not sure about it. It's fajar time and it's very cold. Can I offer salaah without obligatory bath?

Q: Is it permissible to bath after asr in ramdhan?

Is it permissible to sleep after asr in ramdhan?

Q: Is istinja necessary before every wudhu?

Q:

1. Is Khilal done with only the right hand or both the hand?
2. Is the khilal done on all three parts of the beard or just on the chin?
3. Even though the salaah is valid behind a faasiq (shave or trim the beard), is it Mustahab to repeat the salaah prayed?

Q: 

1. Sometimes while watching romantic scenes of movies some fluids come out from my private part and it gets transferred to my clothes. How should I wash these clothes to make it paak?
2. I don't know whether its wetness (mani) is transferred to the bed sheets or chairs where I was sitting or sleeping. I mean people can forget to touch and feel and sometimes our clothes dry off after sitting for a little longer. If I cannot trace where in bed sheet the fluid got transferred then what should I do? Do I have to wash the whole bedsheet or I can leave it?
3. In this situation if after sometime I sit on the bed sheet with my wet clothes and limbs, will I get napaak? I am really confused. please help me.

Q: In the state of impurity can you still do zikr?

Q: Someone works with wood and thereafter he makes wudhu. After salaah he finds that there are little wood splinters on few places pinned in his hand. Is his wudhu valid?

Q: If a dog touches my cloth what is the procedure for cleaning that cloth?