DAY 164
What number when added to itself, subtracted from itself, multiplied by itself, and divided by itself will add up to 64?

Answer:

7 or -9..........A number subtracted from itself is zero, and a number divided by itself is one........... X squared + 2X +1 = 64...........This can be solved either by factoring or by taking the square root of each side.

DAY 165
A school cafeteria buys hot dogs in packages of 36 and buns in packs of 20. What is the least number of each that can be ordered so that you have the same number of hot dogs as buns?

Answer:

5 packages of hot dogs and 9 packs of buns...........The LCM of 20 and 36 is 180.