Impurities

Q: Can livestock manure be sold for garden use?

Q: Glycerin, glyceryl stearate, stearic acid, biotin collagen, keratin and hydrolysed keratin are ingredients used in cosmetic products that are derived from animals. Some of them can be derived from plants too, but if each ingredient mentioned is derived from animals, can the cosmetic products be used?

Q: If a person has on black clothing and blood comes onto the cloth through a wound etc. But he can't determine the amount of blood exactly due to the color of the clothing and read Namaz, does he have to repeat it? What should he do?

Q: I would like to know what is the sharee ruling regarding the urine of a cat. I have heard that according to one view in the Hanafi Mazhab, the urine of a cat is paak and if it comes onto one’s clothing, one does not have to wash the clothing. Is this correct and if correct, is it the preferred view in the Hanafi Mazhab?

Q: In our country, lizards are very common, and they poop everywhere. Is the poop of a house lizard impure? If a house lizard poop falls in water, does that water become impure? If someone steps on house lizard's poop with wet feet, does it make his feet impure?

Q: If a wallet was touched with impure hands and a person keeps that wallet in their pocket and performed salaah with it, what is the validity of their salaah? 

I’m not sure what the impurity was as a few years ago it would be difficult to control impurities and most of the things I touched would become impure. I did wash/wipe the wallet but I’m not sure how long after that was.

Q: Can I use menthol crystals in fragrance free soap base. Menthol crystals doesn't have any particular fragrance. It has a bit of a cooling sensation.

Q: Is haraam cheese impure?