#1
Head and tail are equal;
Right side up or upside down
The same I do appear
(but if you cut my head off, nothing would be there)
Answer: the number 8 (Daas Yochid)
#2
I am very small,
But I help carry a great weight
Although I walk upon my head
Answer: A nail in a horse’s shoe (I didn’t get this one, either)