What is a solid figure having 10 faces called?

What is a soft boot made of reindeer or seal skin called? What is a soft song for a child going to sleep called? A World War II soldier, which civil rights leader murdered in Mississippi in 1963 is buried at Arlington? Which NFL team's logo shows a soldier's head in a blue three-cornered hat with red streaks? What 11-letter word names a solid figure with 7 faces? What word names a hard fruit stone or a cavity in the ground? What solid shape has six identical square faces? A song and a dance were named for which woman who swam the English Channel in 1926 and died at 98 in 2003?