Which of the following is the most abundant metal on Earth's crust?

Naga, Khasi and Garo hills are located in

Huge deposits of uranium were recently found in

Watermelons grow best in

The first biosphere reserve that was set up in India in 1986 is

India is the largest producer and consumer of

A can do a piece of work in 12 days and B in 15 days. They work together for 5 days and then B left. The days taken by A to finish the remaining work is:

A and B can do a work in 12 days. B and C can do the same work in 15 days, C and A can do the same work in 20 days. The time taken by A, B and C to do the same work together is:

18 women can complete a work in 12 days and 12 men can complete the same work in 9 days. In how many days will 8 men and 8 women complete that work?

A and B can do a piece of work in 12 days, B and C in 8 days, and C and A in 6 days. How long would B take to do the same work alone?

A group of men decided to do a work in 10 days, but five of them absented themselves. If the rest of the group finished the work in 12 days, find the original number of men?