What is referred to by 'as a tack'?

What is referred to by 'artichoke aka the sunchoke'? Based on the clue 'as a bug in a rug', what is the answer? What is referred to by 'as a mule'? What is referred to by 'as a statue'? What is referred to by 'as an eel'? What is associated with: away they gothis horse that hit tv in 1956 trails earlyhis jockey gumby has him moving as if h… Based on the clue 'b doing this means either youre hungry or youre a ...', what is the answer? What is referred to by 'be the day'?