Question

when a small boy is trying to push a heavy stone, mention various forces acting on the stone

Answer 1

gravitational force ,
force by the hand of boy ,
contact force ,

Answer 2

The force of reaction exerted by the ground on the stone vertically upwards. The force of pushing exerted by the boy. The force of friction exerted by the stone. When a small boy tries to push a heavy stone, then all these forces are balanced, and therefore the stone does not move.