? Block

A '''? Block (alternatively Question Mark Block), also called a Question Block, a Mystery Block, a Prize Block, a brown Question Mark Box, or simply a ?', is one of the many blocks found in the Mario'' universe and one of the most common. ? Blocks are usually seen floating in midair, often containing coins, Super Mushrooms, or Fire Flowers. They may also be invisible. Beginning in Super Mario Bros. 3, there are different ways to hit the ? Blocks other than simply jumping into them from below, such as using a tail whip with a Super Leaf or Tanooki Suit or a cape spin with a Cape Feather to whack the blocks, or kicking a Koopa Shell at them. As of the New Super Mario Bros. series, a Ground Pound may also be used to activate them. Hitting a ? Block will turn it into an Empty Block.