Amoeba belongs to the phylum

Delonix regia Rafin is the scientific name of

Which is the largest organ in human beings?

Barometer was invented by

The first programming language was

Introducing a boy, Sia says, "He is the grandson of my father. I have no siblings." How is Sia is related to the boy?

Starting from his home, a boy rides on his bike for 8 km towards west, takes a left turn and travels 10 km more. From there, he turns 180° in the clockwise direction and travels another 16 km. Finally, he takes a right turn and travels 8 km more. How far and in what direction is he now from his original position?

Which set of letters when sequentially placed at the gaps in the given letter series shall complete it? _AB_PQ_AB_P_