A: What colour is the sky?
B: It is blue.
A: What colour is the night?
B: it is black.
A: What colour is the sun?
B: it is yellow.
A: What colour is the evening?
B: It is grey.
A: What colour is the morning?
B: it is orange.
A: What colour is the rainbow?
B: It is rainbow! It is red, orange, yellow, green, blue and purple.