Answer:
What is as light as a feather, but not even the strongest man on earth can't hold it for more than 1 c)minute?
What object has keys that open no locks, space but no room, and you can enter but not go in?
What is always coming every day, but never arrives until the next?
What is this Mexican dish consisting of a tortilla rolled around a filling, typically of beans or ground or shredded beef?
Nothing specific, but more than a few. This many clustered, together will do.
I am your mother's brother's only brother in law. Who am I?