[Question]: Alex gets paid $500 a week and 10% of his weekly income is deducted as tax. He also pays his weekly water bill for $55 and gives away another 10% of his weekly income as a tithe. How much money does Alex have left?
[Answer]: His income tax is 10% of 500 which is 500 * 10% = $50. His tithe costs 10% of $500 which is 500 * 10% = $50. The total expenses are 50 + 55 + 50 = $155. He is then left with $500 - $ 155 = $345.
So the answer is 345.

[Question]: May can knit 3 scarves using one yarn. She bought 2 red yarns, 6 blue yarns, and 4 yellow yarns. How many scarves will she be able to make in total?
[Answer]: May will be able to make 2 x 3 = 6 red scarves. She will be able to make 3 x 6 = 18 blue scarves. And she will be able to make 4 x 3 = 12 yellow scarves. Therefore the total scarves she can make is 12 + 18 + 6 = 36.
So the answer is 36.

[Question]: Hadassah took six hours to paint 12 paintings. What would be the total time she's taken to finish all the paintings if she paints 20 more paintings?
[Answer]:
If it took Hadassah six hours to paint 12 paintings, then she paints 12 / 6 = 2 paintings in an hour. If two paintings take an hour to complete, 20 paintings will take 20 / 2 = 10 hours. The total time she took to finish all the paintings is 10 + 6 = 16 hours.
So the answer is 16.