Answer:
Long and think, red within, with a nail at the end.
You should keep it as straight as can be, yet very few do. Most of the time it's slightly bent or curved. Your sadness usually causes it to bend further, but don’t bend it for too long or it may never be able to fully straighten out again. What is it?
What has 4 eyes but can’t see?
What has 3 feet but cannot walk?
I crawl on the earth. And rise on a pillar.
What language does a billboard speak?
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?