1. If a tin container is cube-shaped with each edge measuring 30 cm, what is the maximum amount of water it can hold in liters?

2. From a completely filled cube-shaped water tank, 64 equal-sized buckets of water are taken out, leaving the tank one-third full. If the length of one edge of the tank is 1.2 meters, calculate and write how many liters of water each bucket can hold.

3. From a cube-shaped water tank, 64 buckets of equal size are removed, leaving the tank one-third full. If the side length of the tank is 1.2 meters, then how much water does each bucket hold in liters? (Assume: 1 cubic decimeter = 1 liter)

4. Under the condition that no interest will be charged if the money is repaid within two years, three friends borrowed ₹6000, ₹8000, and ₹5000 respectively from a cooperative bank to jointly purchase four cycle rickshaws. After two years, after deducting all expenses, their total income amounted to ₹30,400. They divided this income in proportion to their capital contributions and then repaid their individual bank loans. Now, calculate how much money each person will have left in hand and what the ratio of the remaining amounts will be.