A Question for you...?

Question

what cracks in the back, lacks in shack and wacks in the sack?

Answer 1

I give up. Please tell me the answer. Please. Please

Answer 2

a old man????

Answer 3

I give....but love these though. Here's a couple for you and I'll put answers at the bottom so you can cover up with you hand.  There is an exact answer to each.

If a chicken and a half laid an egg and a half every day and a half, how many eggs would you have at the end of the week?

A cowboy rode into town on Thursday, stayed 3 days and left on Thursday, how did he do it?

There is a big patch of woods and you are holding back an anxious dog on the outskirts of these woods,  after letting go of him how far could that dog run into those woods?

First is 7, the half for everything makes it superfluous.

Second, the horses name is "Thursday"

Third answer is HALFWAY, the dog can run INTO the woods halfway-the other half he'd be running OUT