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* There are 51 ants sitting on top of a square table with side length of 1. If you have a square card with side 1/5, can you put your card at a position on the table to guarantee that the card encompasses at least 3 ants?
-* What is the minimum number of colors needed to paint the plane so no two points 1 unit apart share the color?
+* What is the minimum number of colors needed to paint the plane so no two points 1 unit apart share a color?
* A bond prospectus states: “This bond will default if and only if its default cannot be proven in ZFC set theory.” What is the bond’s credit rating?