Siri's answer to the brain-teaser question "What's zero divided by zero" generates a response that people find both funny and unnerving. NPR hide caption

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Same-sex marriage supporters rejoice outside the Supreme Court in Washington, D.C., on Friday after the U.S Supreme Court handed down a ruling regarding same-sex marriage. The high court ruled that same-sex couples have the right to marry in all 50 states. Alex Wong/Getty Images hide caption

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The Supreme Court handed a victory to the Obama administration and civil rights groups on Thursday when, by a 5-4 decision, it upheld a key tool used for more than four decades to fight housing discrimination. Eric Gay/AP hide caption

itoggle caption Eric Gay/AP