What is the structure of the major product when phenol is treated with bromine water?

When phenol is heated with zinc dust,it forms product $X$. What is the product $X$?

Which of the following products is obtained when phenol is treated with $CHCl_3$ and $NaOH$?

In the following reaction sequence,identify $Q$:
$p\text{-Chloronitrobenzene}$ $\xrightarrow[\Delta, P]{NaOH} P$ $\xrightarrow{C_6H_5CH_2Cl} Q$

The product of the following reaction is:

Consider the following reaction:
$Phenol$ $\xrightarrow{Zn\,dust} X$ $\xrightarrow[{Anhyd.\,AlCl_3}]{CH_3Cl} Y$ $\xrightarrow{Alkaline\,KMnO_4} Z$
The product $Z$ is: