Water lily is symbol of which Country?
A. Canada
B. China
C. Bangladesh
D. Pakistan
What is the weight of the average human brain?
A. 1.2 to 1.4 kg
B. 1.4 to 1.8 kg
C. 2.1 to 2.8 kg
D. 3.1 to 3.4 kg
Telephone was invented by__________?
A. Vint cerf
B. Charles babbage
C. Edison
D. Alexander graham bell