To calculate the total number of legs, we multiply the number of goats by the number of legs per goat and add it to the product of the number of sheep and the number of legs per sheep. Therefore, (17 goats * 4 legs/goat) + (12 sheep * 2 legs/sheep) = 68 + 24 = 128 legs.

The sentence implies that the man with the red beard is the brother of the woman with the green eyes, and the woman with the green eyes is the mother of the man with the red beard. Therefore, the relationship between the man with the red beard and the woman with the green eyes is son and mother.

To distribute the coins equally among 10 beggars, the merchant should give each beggar 100 coins / 10 beggars = 10 coins. However, since he is short of 2 coins, he can only give each beggar 10 - 2/10 = 9 coins.

The riddle describes something that grows when fed and dies when given a drink. This is a characteristic of fire. Fire grows when fueled with more combustible material, but it is extinguished when water is poured on it.

To calculate the number of acres used for vegetables, we need to find the remaining land after wheat and rice are planted. Wheat is planted on 60% of 100 acres, which is 0.6 * 100 = 60 acres. Rice is planted on 20% of 100 acres, which is 0.2 * 100 = 20 acres. Therefore, the remaining land for vegetables is 100 - 60 - 20 = 20 acres.

The sentence implies that the king's son is the father of the speaker's son. This means that the speaker is the king's daughter and the king is the speaker's father. Therefore, the speaker is the king.

To calculate the overall profit or loss, we need to find the profit or loss from each transaction and then combine them. Profit from selling 30 oranges at a profit of 20% = 30 oranges * 20% profit = 6 oranges. Loss from selling the remaining 90 oranges at a loss of 10% = 90 oranges * 10% loss = 9 oranges. Overall profit = 6 oranges - 9 oranges = -3 oranges. Therefore, the merchant has an overall loss of 3 oranges, which is equivalent to a loss of 3/120 * 100% = 2.5%.

The riddle describes something that has a neck without a head, a back without a spine, and four legs without feet. This is a characteristic of a shirt. A shirt has a collar (neck) but no head, a back but no spine, and sleeves (legs) but no feet.

To calculate the overall profit or loss, we need to find the profit or loss from each transaction and then combine them. Profit from selling 20 chickens at a profit of 10% = 20 chickens * 10% profit = 2 chickens. Loss from selling 30 chickens at a loss of 5% = 30 chickens * 5% loss = 1.5 chickens. Profit from selling the remaining 50 chickens at no profit or loss = 0 chickens. Overall profit = 2 chickens - 1.5 chickens + 0 chickens = 0.5 chickens. Therefore, the farmer has an overall profit of 0.5 chickens, which is equivalent to a profit of 0.5/100 * 100% = 0.5%.

The sentence implies that the speaker's mother has only one daughter, who is the speaker's sister. This means that the speaker is a man, as he is the brother of his mother's only daughter.

To calculate the overall profit or loss, we need to find the profit or loss from each transaction and then combine them. Profit from selling 40 bags at a profit of 10% = 40 bags * 10% profit = 4 bags. Loss from selling 30 bags at a loss of 5% = 30 bags * 5% loss = 1.5 bags. Profit from selling the remaining 30 bags at no profit or loss = 0 bags. Overall profit = 4 bags - 1.5 bags + 0 bags = 2.5 bags. Therefore, the merchant has an overall profit of 2.5 bags, which is equivalent to a profit of 2.5/100 * 100% = 2.5%.

The riddle describes something that is always wet, always moving, always changing, but always stays the same. This is a characteristic of a river. A river is always wet with water, it is always moving downstream, it is always changing its course and shape, but it always remains a river.

To calculate the overall profit or loss, we need to find the profit or loss from each transaction and then combine them. Profit from selling 25 sheep at a profit of 20% = 25 sheep * 20% profit = 5 sheep. Loss from selling 35 sheep at a loss of 10% = 35 sheep * 10% loss = 3.5 sheep. Profit from selling the remaining 40 sheep at no profit or loss = 0 sheep. Overall profit = 5 sheep - 3.5 sheep + 0 sheep = 1.5 sheep. Therefore, the farmer has an overall profit of 1.5 sheep, which is equivalent to a profit of 1.5/100 * 100% = 1.5%.

The sentence implies that the speaker's father has only one son, who is the speaker's brother. This means that the speaker is a man, as he is the brother of his father's only son.

To calculate the overall profit or loss, we need to find the profit or loss from each transaction and then combine them. Profit from selling 40 bolts at a profit of 15% = 40 bolts * 15% profit = 6 bolts. Loss from selling 30 bolts at a loss of 10% = 30 bolts * 10% loss = 3 bolts. Profit from selling the remaining 30 bolts at no profit or loss = 0 bolts. Overall profit = 6 bolts - 3 bolts + 0 bolts = 3 bolts. Therefore, the merchant has an overall profit of 3 bolts, which is equivalent to a profit of 3/100 * 100% = 3%.