15 12 ? 9 21 6
15 – 3 = 12 12 + 6 = 18 18 – 9 = 9 9 + 12 = 21 21 – 15 = 6
Who is the father of Biology?
How many pair of heart is found in an earthworm?
Which one of the following is written by “Varahamihir?”
Which city in the U.S became the first to ban caste discrimination?
Which of the following hormone used as the medication to facilitate childbirth?
The BSF (Border security Force) celebrated its _____ formation day on 1st December, 2022.
What is the chemical name of Vitamin B5 ?
Thinnest skin in the human body is
Who was known as the Father of Microbiology?
First king to have the image of Buddha incrisbed on his coin?
