[Answer] 1. This leader was in charge of the Khmer Rouge communist movement in Cambodia. His attempts to "cleanse" Cambodia resulted in millions of deaths.

Step 1 : Introduction to the question "1. This leader was in charge of the Khmer Rouge communist movement in Cambodia. His attempts to "cleanse" Cambodia resulted in millions of deaths."

...1. Pol Pot 2. Kim Il-Sung 3. Kim Jong-Il 4. Tou Samouth Pol Pot was the leader of Cambodia's "Khmer Rouge" communist movement. It is estimated he caused between 1.7-2.5 million deaths. He favored "agrarian socialism", which involved relocating people from towns to rural environments to work on his "special projects." Pol Pot, whose original name was Saloth Sar, wanted a new beginning, a "Year Zero." About 20% of the Cambodian population died at the hands of Pol Pot's leadership. His cruel reign was brought to an end during the Cambodian-Vietnamese War of 1978-79. Tou Samouth was Pol Pot's mentor. Kim Jong-Il and Kim Il-Sung are both North Korean despots.

[Answer] 10. Al Capone made a crucial mistake that resulted in his conviction and imprisonment. What was the crime?

Step 1 : Introduction to the question "10. Al Capone made a crucial mistake that resulted in his conviction and imprisonment. What was the crime?"

...1. Bribery 2. Income Tax Evasion 3. Extortion 4. Embezzlement All those violent crimes ... and they nailed him for taxes.

[Ans] Which Queen sponsored Christopher Columbus' voyage which resulted in the discovery of America?

Step 1 : Introduction to the question "Which Queen sponsored Christopher Columbus' voyage which resulted in the discovery of America?"

Christopher Columbus asked King Ferdinand & Queen Isabella of Spain to sponsor his voyage of exploration. Queen Isabella refused Columbus at first but eventually agreed to sponsor the voyage. King Ferdinand and Queen Isabella gave Columbus three ships, a crew of about ninety men, and some money. The voyage led to the opening of the New World and to the establishment of Spain as the first global power which dominated Europe and much of the world for more than a century. Happy Columbus Day folks!

[Answer] Which Queen sponsored Christopher Columbus' voyage which resulted in the discovery of America?

Step 1 : Introduction to the question "Which Queen sponsored Christopher Columbus' voyage which resulted in the discovery of America?"

...Christopher Columbus asked King Ferdinand & Queen Isabella of Spain to sponsor his voyage of exploration. Queen Isabella refused Columbus at first but eventually agreed to sponsor the voyage. King Ferdinand and Queen Isabella gave Columbus three ships, a crew of about ninety men, and some money. The voyage led to the opening of the New World and to the establishment of Spain as the first global power which dominated Europe and much of the world for more than a century. Happy Columbus Day folks!