Answer:
Iโm where yesterday follows today. And tomorrowโs in the middle. What am I?
Take it and you will lose or gain more than the others.
In many hall ways you would stand if not with me in hand.
I'm as simple as a circle worthless as a leader; but when I follow a group their strength increases tenfold. By myself I'm practically nothing.
I'm a kind of cup that doesn't hold water, but makes a lot of noise repeatedly. What am I?
A little house full of meat, no door to go in and eat.