In Austin, Texas, last week, police investigated an unusual donation to a local Goodwill: a human skull just a few years old. The police think the skull is some kind of anatomical specimen and not related to a crime—but they're still hoping to track down the mystery donor. Even if you missed that important news story, you should still take a crack at the skull-busting current events questions on this week's Slate News Quiz.

Question 1 of 12

In Sunday TV appearances, intelligence committee chairs from both houses of Congress—and both parties—criticized President Obama for what?

Question 2 of 12

What event has Icelandic officials worried about a devastating kind of flood called a jokulhlaup?

If magma from the Bardarbunga eruption seeps under nearby glaciers, the result could be an explosive burst of ash clouds and water.

Question 3 of 12

According to new government statistics, what did 80 percent of Americans do in 1974 that only 56 percent will do this year?

The average American worker gets 14 days of vacation a year, says the Bureau of Labor Statistics, but uses only 10 of them.

Question 4 of 12

On Tuesday, after a special meeting on the subject, the U.N. announced that "all international organizations (had) underestimated" the seriousness of what?

We are "losing the battle" with Ebola, warned Doctors Without Borders, as more than 400 deaths were reported over the past week.

Question 5 of 12

Where are rebels uniting to fight under a new flag, a blue diagonal cross on a red background?

The flag, seen on tanks, uniforms, and rebel headquarters, represents the theoretical state of "New Russia" on formerly Ukrainian soil.

Question 6 of 12

Oktoberfest celebrations in Bavaria have been jeopardized by the threat of what?

The local union of 48,000 bakers plans to walk out on Sept. 20—the start of Oktoberfest celebrations—if a new contract can't be negotiated by then.

Question 7 of 12

This week, federal judges in both Texas and Louisiana blocked those states' restrictive laws on what issue?

Question 8 of 12

What company launched an ill-advised bucket-list promotion asking customers what they would like to do before they die?

In the extraordinarily poorly timed sweepstakes, the beleaguered airline offered free round-trip tickets to travelers who told them what destinations were on their bucket list.

Question 9 of 12

After a Sunday ruling restricting 2017's election, groups like Occupy Central With Love and Peace are staging massive pro-democracy protests in what city?

China's legislature decreed that all candidates for Hong Kong's highest offices will be handpicked by a pro-Beijing committee, angering activists.

Question 10 of 12

Columbia student Emma Sulkowicz reported a rape to the administration two years ago, but the university found the man not responsible. How is she protesting?

The senior's "endurance performance art" will continue, she says, " for as long as I attend the same school as my rapist."

Question 11 of 12

The FBI has declassified documents related to a top-secret 1950s program called Project Washtub, which organized what?

The FBI prepared a network of bush pilots, trappers, and other undercover agents in Alaska, ready to go Red Dawn if the Russians ever invaded the then-territory.

Question 12 of 12

Last week, a team at MIT announced that they'd been able to use laser pulses to change a mouse's what?

For the first time, researchers have been able to turn bad memories into good ones by manipulating neurons in the hippocampus.