How long does it take to go from bald to having hair 1.5 feet in length?
Muriel Spark has written 22 novels. How long would it take the average person to read all of them?
The grand canyon has a dam at the top and the bottom. If we stoppered the dam at the bottom and let the Canyon fill up, how long would it take?
How many people could we fit into this classroom?
Abel is throwing a party. Bob gets there first, and they shake hands. Carol is next, she shakes hands with Bob and Abel. Donna gets there next and ... you guessed it, shakes hands with the three already there. How many hands are shaken by the time Zula is finished (25th person to get to the party)
YouTube -- how long would it take one person to watch all of it? How long would it take the population of the United States to do it, assuming they divvied it up evenly?
How many miles (or km, don't care) do you walk in one semester at Bennington?
Which is longer, an earth sunset or a martian sunset?