in a village a tree was there.nearby that tree some power lines were there.
a parrot was sitting in the tree and some birds were sitting in power line.
parrot said looking at the birds"hello birds.your total count is 100".
birds replied:"no.you are wrong.if you include us and our relations and half of our relations and (half and half)of our relations and you,the total count will be 100".
how many birds were sitting in power line?