Which of the following hormones are known by different names?

The abnormal condition in which breast tissue develops in males,similar to females,is known as:

Which one of the following is not an endocrine gland?

The trace element essential for the maximum effect of insulin in glucose uptake is ...... .

The products of glands are given below:
Mucus,Saliva,Prolactin,Earwax,Oil,Testosterone,Milk,Digestive enzymes
Products of exocrine glands = $P$
Products of endocrine glands = $Q$
Select the correct option for $P$ and $Q$.

Select the mismatch pair with respect to hormones.