In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half the lake? Check the answer here.
Take a good look at your hands. You have 10 fingers on your hands. How many fingers are there on 10 hands? Check the answer here.
What number do you get when you multiply all of the numbers on a telephone’s number pad? Check the answer here.
There was a girl half my age when I was 12, now I am 64, how old is she? Check the answer here.
How many times can you subtract 10 from 100? Check the answer here.