631. Name the first Roman Catholicon born in 20th century to become the President of America?
John F.Kennedy
632. Of which kingdom was Malik Ambar the Prime Minister?
Ahrnadnagar
633. What was the source of the blue gem stone, lapis lazuli, for the people of Harappan culture?
Afghanistan
634. Mount Everest; the highest peak in the world; is located in which country?
Nepal
635. Which is the largest gland in the human body?
Liver
636. The United Nations declared 2001 as which International Year?
International Year of Volunteers
637. Where do Sweat glands occur in greatest number?
In the skin of the armpits
638. Name the only vein carrying pure blood?
Pulmonary vein
639. Fidel Castro came to power in Cuba in?
1959
640. A virtual image larger than the object can be formed by which mirror?
Concave mirror