If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?
Construct a circle of radius 1. From a point on the circle, construct another circle of radius 1. Inscribe a square where the two circles overlap. What is the area of the square?
There are nine metal blocks.
1 metal block is slightly lighter than the other 8.
If you have a balance scale find the minimum times will you have to weigh to find the lighter block?
I am a number, I am not an odd number, I am higher than 90, I am not higher than 100, If you subtract me from 100, you get nothing. What number am I?
A tosses a fair coin 50 times. B tosses another fair coin 51 times. What is the probability that B got more heads than A?
