What can you catch but never throw?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

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?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

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?

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