Quiz to see if you are smart

What has a head a tail but no body ----> [blank_start]_____[blank_end]

If Neil Armstrong took the first step on the moon who took the second? ---> [blank_start]______[blank_end]

If there are 12 fish and half of them drown, how many are there?

If there are 6 apples and you take away 4, how many do you have?

How much dirt is there in a hole 3 feet deep, 6 ft long and 4 ft wide? ---> [blank_start]__________[blank_end]