Theory of evolution

Q: What is the status of someone, who in an attempt to reconcile the theory of evolution with the Islamic narrative of human origins, states that homo sapiens (modern humans) descended from other hominid species (all the while believing that all of this happened by Allah's Will and Power). Thereafter, these homo sapiens went extinct (died off) and Allah created Adam (Alayhis Salaam) - a special, direct, and miraculous creation - and we are all descendants of Adam (Alayhis Salaam). Is this belief kufr? Is this person a kafir (disbeliever)?

Nisaab for zakaat for husband and wife

Q:

1. I have question regarding zakat. I am a married and a house wife. My husband is working in another city. My husband gives me money monthly for home purchases and some pocket money. We don't have our own house, we just bought a piece of land 5 months ago and want to build a house. My husband has 7000 dollars and I have more than 100 grams of gold. So is zakat and qurbani waajib on me and on my husband or do we first have to build our house?

2. If qurbani and zakat is waajib on us, do we have to pay zakat separately and do qurbani separately?

Masturbation

Q: Is it a major sin for a woman to masturbate? Could you please provide references from the Quran Sharif and Hadith for the satisfaction of my heart and mind? I have heard that it can cause weak memory and eyesight as well as other health problems.