To be stumped

I have a quiz sheet that has 105 questions, I have only 4 unsolved, can anyone help?
These are sayings, phrases, song,film,book or play titles:
I-------- one t-- f---
ten t------- s-- I a- a g-----
t-- l--- o- three o------
five f----- e-------
thanks in advance for any help

five finger exercise
the love of three oranges

ten thousand say I at a glance... (I wandered lonely as a cloud....)

Well, the last one still has me stumped. I can imagine "imagining one too fair" as something that fits... but I can't find the reference. Help?

I haven't figured it out, even with the help of the list of 9-letter I-words in a crossword-puzzle dictionary. Has any poet written "incurious one, the frog"?

one two five? one too fast? one two feet? one tan fish? one top fool?

And where does the expression 'I'm stumped' come from? As far as I'm concerned, cricket is a very likely origin, since 'to be stumped' is a way of getting a player out. What do the US regulars reckon?

We-all reckon this here ol' Oxford English Dictionary is the best goldurn reference book we ever set eyes on, sure as shootin'.

Sense #14 for "stump" (verb): "Orig. U.S. To cause to be at a loss; to confront with an insuperable difficulty; to nonplus. The primary reference was prob. to the obstruction caused by stumps in ploughing imperfectly cleared land."