Answer to mind teaser #10, mind teasers involving maths

Answer to mind teaser # 10

Say "EYE". The monkey's hand is normal. Its fingers should be equally spread over two hands, so it's okay that it does not have all its fingers on one hand.

Mind teasers involving maths.

There are may mind teasers that involve maths. The trick here is to work through all the clues logically. The clues will give you all the details you need to solve the mind teaser. If you have a little problem solving simple math sums in your head, a calculator is permitted. Here is this week’s mind teaser:

Mind teaser # 11

The fish market is selling several kinds of fish. But there aren't any prices listed. You ask about the prices, but all the seller will tell you is this:

1. A pound of salmon and a pound of bass are $12.
2. A pound of bass and a pound of swordfish are $10.
3. A pound of salmon and a pound of swordfish are $8.
4. A pound of swordfish and a pound of catfish are $5.

Each price per pound is a whole-dollar amount. How much is the price per pound for each kind of fish?