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

What can you catch but never throw?

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

How can you leave a room with two legs and return with six legs?

There is something which is always coming but never arrives?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

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?

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

What is at the end of a rainbow?