Indy. are they plump or are they small and shriveled up. Also look all aroudn them for teeny tiny holes. Alot of them that hit the ground, if ya don't get thempicke dup as soon as they fall they get a little worm inside them.
best way to germinate them is take them put ina pot of good organic soil and some leaf mulch on the top, keep damp and wait and wait and wait and don't plant them very deep.