A promise.
A promise.
A cold.
Double your money every day for 31 days
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".
Twelve. It takes onle twelve of anything to make a dozen.
Eleven
322, 161
(x*3+1, /2, *3+1, /2 …)
An echo.
The bowl.
Evaporated milk.
Number 194.
A seesaw.