What is so fragile that saying its name breaks it?

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

I have teeth but i don't bite. Who Am I ?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

It belongs to you, but other people use it more than you do. What is it?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

Name the three-letter word that can complete the below words:

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

What word is pronounced the same if you take away four of its five letters?