Question

red men live in red house blue men live in blue house green men live in green house who lives in white house

Answer 1

if it is a brain teaser then the answer is
The president of USA

Answer 2

Hey friend!

This is very obvious question it seems if we go as the sequence you told.

Red men= Red house
Blue men= Blue house
Green men= Green house
White men= White House Or if we see through other dimensions, It is the president of USA. .

Hope it helps...!!!