If a person who is fasting eats or drinks by mistake, and not intentionally his fast is in order.

The best age is in the 'hands' of Allah - He will call us to His house when it is the best time for each of us.

Hajj becomes obligatory (Wajib) on a Muslim as soon as s/he becomes baligh and is able financially, physically, and time-wise and so should be performed in that year, no matter what the age is.

Bismihi ta'ala,

In our Fiqh, a wet-dream is called Ihtilam, (from the word hilm, which means dream). A wet-dream is one of the signs of religious maturity for a male, and its general definition is "the ejaculation of semen while sleeping."

Naturally a wet-dream occurs for both males and females, but there is a view that a woman does not have to do ghusl janabah when she has a wet-dream, and discharge.