A coat of paint.

Of course, when the trains encounter, they will be approximately the same distance away from New York. The New York train will be closer to New York by approximately one train length because they're coming from different directions. That is, unless you take "meet" to mean "pefectly overlap".

Address.

An envelope.

A penguin

Library.

Bubble

Love.

Window.

There is a 50/50 chance of each toss being either heads or tails. The previous toss does not impact the next toss.

Peter is a bus driver

Your shadow.