Ratio of ages across time span
13:09
Variation: Days goat can graze, if grass grows
16:28
Ratios of Income Expenses Savings
18:30
Calculation Techniques: Practicing Multiplication Tables
24:22
How many Mocks to take, at what intervals and their purpose
20:57
Walk-Bike-Walk, Common Time Speed Distance Puzzle
23:52
Round Robin: Min/Max Wins for Advancing/Elimination
19:12
Sum Constant and Product Maximum
15:06