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The September 11 Attacks Quiz
by Staff
On Sept. 11, 2001, terrorist attacks on America altered the world's political and military landscape. How much do you really know about the history of these atrocities?

Who was the operational mastermind of the 9/11 attacks?

  • Khalid Sheikh Mohammed
  • Mohamed Atta
  • Osama bin Laden

Khalid Sheikh Mohammed's plan originally called for crashing how many planes?

  • 10 planes
  • 18 planes
  • 23 planes

After the South Tower of the World Trade Center was hit, how long did it remain standing before finally collapsing?

  • 3 hours and 12 minutes
  • 1 hour and 20 minutes
  • 1 hour and 53 minutes

Why did al-Qaida select only cross-country flights for their plan?

  • They were loaded with the greatest amount of explosive jet fuel.
  • The planes could stay airborne longer.
  • Security on those flights was less strict.

How many total hijackers took part in the 9/11 attacks?

  • 15 hijackers
  • 17 hijackers
  • 19 hijackers

How many people died at the World Trade Center as a result of the attacks?

  • 2934
  • 2751
  • 2843

Although the country had few links to al-Qaida and no connection to 9/11, American leaders used supposed evidence of what to invade Iraq?

  • SCUD missiles
  • weapons of mass destruction
  • anthrax

On the morning on Sept. 11, 2001, at what time did the FAA order every plane in American airspace to land?

  • 9:45 a.m.
  • 8:30 a.m.
  • 10:20 a.m.

On which of the four hijacked planes did passengers fight back against the terrorists?

  • Flight 77
  • Flight 93
  • Flight 167

Near which city did Flight 93 crash?

  • Washington, D.C.
  • Newark, N.J.
  • Shanksville, Pa.

Minus the hijackers, how many passengers were aboard Flight 93?

  • 98
  • 87
  • 33

What was the intended target of Flight 93 before passengers interrupted the hijackers' plans?

  • the Washington monument
  • the U.S. Capitol
  • the city of Pittsburgh

After the attacks, how much time passed before America launched a full-scale war against terrorism?

  • 1 month
  • 3 months
  • 1 year

Before they attacked the terrorists, what did passengers aboard Flight 93 do?

  • They had a meeting.
  • They loaded their weapons.
  • They took a vote.

What was the primary weapon of the hijackers?

  • time bombs
  • box-cutting knives
  • handguns

How long did it take for Osama bin Laden to admit his part in the 9/11 attacks?

  • 24 hours
  • 3 months
  • 3 years

The CIA finally found bid Laden in 2011. How long did they track his courier before pinpointing bin Laden's location?

  • 4 years
  • 5 years
  • 8 years

How many gallons/liters of jet fuel was Flight 93 carrying as it crashed?

  • 900 gallons (3,406.8 liters)
  • 1,200 gallons (4,542 liters)
  • 7,000 gallons (26,497.8 liters)

What's the name of the Pakistani town where bin Laden was killed by U.S. forces?

  • Abbottabad
  • Islamabad
  • Islamorada

About how long did the secret, quick-strike mission to kill bin Laden last?

  • about 15 minutes
  • about 40 minutes
  • about 2 hours