the brain quiz are you smart or dumb? cool awesome amazing cool awesome amazing aproximatly awesome cool awesome boot24 published on March 10, 2016 Stacked 1/5 what is the cube route of 24,389 24,000 29 30 50 2/5 what is the square route of 24 1 10 20 11 3/5 what is the best conductor of electricity magnisium iron copper brass 4/5 what is the fruit only in england? blackcurrent grape blueberry blackberry 5/5 did you win this quiz yes no mabe sure