Statements: All dogs are cats. All cats are birds. Some birds are fish. All fish are animals. Conclusion I: Some dogs are fish. Conclusion II: All dogs are animals. Which is correct?

The pH of human blood is maintained around:

Five houses in a row are painted different colors. The green house is immediately to the left of the white house. The red house is at one end. The blue house is between the yellow and red houses. The yellow house is at the other end from red. What color is the middle house?

Statements: No table is a chair. Some chairs are stools. All stools are benches. Some benches are beds. Conclusion I: No table is a bench. Conclusion II: Some chairs are beds. Which is correct?

The human genome contains approximately how many genes?

Five people A, B, C, D, E sit in a row facing north. A sits at one end. B sits next to A. C does not sit next to B. D sits between C and E. Who sits at the other end?