Answer:
It has the biggest wall and is also used when drinking tea.
The part of the bird, that is not in the sky, Which can swim in the ocean and always stay dry. What is it?
What is born on the ground but floats to the sky, to be returned back again from the clouds up high?
What time of day, when written in capital letters, is the same forwards, backwards, and upside down?
What loses its head every morning only to get it back every night?
Cycle Cycle Cycle.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?