Commuter ScienceThese brain teasers rely on your ability to recognize groups of common attributes. For each of these puzzles you'll need to figure out why the words or letters are grouped as they are. Sometimes you will be asked to pick the odd-one-out or to place a new word into the correct group.
What is the link between the following countries?
Czechoslovakia also shared this link, although neither the Czech Republic nor Slovakia do individually.
HintIt really is a "link" you are looking for.
AnswerThey all have internet top-level domains that are chemical symbols.
Argentina - .ar - argon
Australia - .au - gold
Brazil - .br - bromine
Chile - .cl - chlorine
Colombia - .co - cobalt
Liechtenstein - .li - lithium
Madagascar - .mg - magnesium
Slovenia - .si - silicon
Czechoslovakia had the domain .cs, shared with caesium, whereas the Czech Republic (.cz) and Slovakia (.ck) lack this property.
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