Good Riddles

Question: Find the five digit number in which the first digit is one half of the the 4 fourth digit, the second digit is one fourth of the last digit, the fourth digit is 3 times the second digit, and the third digit is the first digit plus 4.

Question: I can be shared by many or spread to few, I am as fragile as silk yet as strong as steel. Wars have been fought in my name, generations defined by me. What am I?

Question: what have holes but you will see it on the street ?

Question: What are the cleverest bees?

Question: I always listen to my Master, I never disobey. From my path I never stray to destroy what's in my way. What am I?