Which ancient queen led Palmyra in revolt against Roman rule during the 3rd century CE?

Queen Zenobia

Which Old Testament judge made a vow leading to his daughter's unfortunate fate? In rugby league, how many tackles does a team have available before losing possession? In folklore, what substance can be placed at doorways to deter evil spirits? Who founded the "I Hate Rachel Green" club with Ross in high school? Which chemical bond forms between oppositely charged ions?