I walk on 4 legs in the morning, 2 legs at noon, and 3 legs at night. What am I?

I can help you to mend. I hide my body but never my head. What am I?

I have strong affection for belly buttons. What am I?

I am the ultimate killing machine, used not once but TWICE, I can be made by humans. What am I?

In prison I will be found, but I'll never be in court, unless there's more than one. What am I?

My teeth help me suck. What am I?

I destroy your home from inside out. What am I?

I'm really blue, but when you see me I'm red. You don't see me too often. I'm there for you if you're hurt, but I'm good for you. What am I?

I am pinched by grandmas. What am I?

Before I grow I'm small. When I'm old I grow tall. When I die I give a mighty fall. What am I?

I am a ship that can be made to ride the greatest waves. I am not built by objects, but built by minds. What am I?

To cross the water I'm the way. For water I'm above I touch it not, and truth to say, I neither swim nor move. What am I?

I am round. I have only one line. Circle is not my name indeed. What am I?

I am the only organ that named myself. What am I?

Canine children. What am I?

To give me to someone I don't belong to is cowardly, but to take me is noble. I can be a game, but there are no winners. What am I?

Where force can't get through, I with a gentle movement do. What am I?

Though learning has fed me, I know not a letter; I live among the books, Yet am never the better. What am I?

I live next to beauty trying to catch your eye. Grab me without looking, and you're surely to cry. What am I?

I contain words about words, some of which you've never heard. What am I?