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So you call yourself a burger-lover. Why don't you prove it? Test your burger knowledge below by correctly identifying the most popular restaurants' staple hamburgers. It's tougher than you might think!

Image source: Flickr user dongkwan

Question 1/11

This burger is from:
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Question 2/11

This burger is from:
Image source: Instagram user urix

Question 3/11

This burger is from:
Image source: Instagram user instagoodcomida

Question 4/11

This burger is from:
Image source: Flickr user jesswebb

Question 5/11

This burger is from:
Image source: Instagram user drestateofmind

Question 6/11

This burger is from:
Image source: Instagram user derpderppanda

Question 7/11

This burger is from:
Image source: Flickr user hankhession

Question 8/11

This burger is from:
Image source: Flickr user ayustety

Question 9/11

This burger is from:
Image source: Instagram user sweetvoice14

Question 10/11

This burger is from:
Image source: Flickr user theimpulsivebuy

Question 11/11

This burger is from: