What are the math problems in the ten classic books of calculation?

Logging with a rope, if the rope is folded three times and measured, the rope will be five feet more; If the rope is measured by 40% off, the rope is one foot long and the rope is longer.

Geometry of oil well length and depth

Today, there are pheasants and rabbits in the same cage, with 35 heads above and 94 feet below. Ask the geometry of pheasant and rabbit

I don't know what the * * * number is today, but the scatter number is 2, the scatter number is 3, and the scatter number is 2.

I don't know the number of things, three to two, five to three, seven to two. What is the total number of things?

Today, there is a chicken Weng, which is commendable; One mother hen is worth three; Three chickens are worth one. Buy 100 chickens for every 100 yuan, and ask the geometry of chicken Weng, mother and hen.

Today, it is expected to be an island. The two tables are three feet high and separated by thousands of steps. The back table is perpendicular to the front table. From the front table, walk 123 steps, look at the ground, take the peak of the king, and connect with the bottom table. From the back table, one hundred and twenty-seven steps, people landed to get Wang Daofeng, also connected with the bottom of the table. Ask about the height of the island and the geometry of the table.