Diamonds mined in Brazil are harder than those found in Africa.
40
The "Cobra Effect" is where a solution for a problem actually makes the problem worse.
21
There are over 16,251 full-service restaurants in the vicinity of NYC. You could visit one every day for 40 years and still not have visited them all. This excludes counter service restaurants and cafeterias.
5
Those things you see in your eyes when you stare into space are called Mouches Voltanes, which are also broadly referenced to as Floaters.
9
Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13
In the White House, there are 13,092 knives, forks and spoons!
51
Standard paper cannot be folded in half more than 7 times.
232
You can immediately cool down a car that has been sitting under the sun by rolling down the window on one side and opening-closing the door on the other side 5-6 times.
23