Answer:
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.
The most famous dinner
I have a hundred legs but cannot stand. I have a long neck but no head. I cannot see and I help keep your house neat and tidy.
I am merry creature in pleasant time of year as in but certain seasons I sing that you can hear; And yet I'm made a by-word A very perfect mock; Compared to foolish persons And silliest of all folk.
Dead on the field lie ten soldiers in white killed by one blade yet there was no fight. What are they?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?