Burying Islamic literature

Q: With regards to Islamic literature, for example letters and leaflets that contain the name of Allah Ta'ala and the prophet (Sallallahu Alayhi Wasallam), how are they to be disposed of? Is it correct to wipe away/erase those names and then dispose of the letters in the bin, or must they be burned?

Imaam making intention for women

Q:

1. If there are women following the Imam, does he have to make a specific niyyah for them?

2. If he makes general niyyah for all those following him, will it suffice?

3. If he didnt know there were women following him, will their salaah be accepted?

4. If he knew but didn't make intention for them, will their salaah be accepted?