From which one of the following chambers of human heart is the oxygenated blood pumped into aorta?

Anup Sridhar is well known for playing :

The International Date Line passes through:

From the evolutionary point of view, which one among the following organisms is more advanced than the other three?

F-16 fighter planes are manufactured by:

Who of the following is the author of the book "Imagining India: Ideas for the New Century"?