When we see 2 but call 10?

I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

I am an odd number. Take away a letter and I become even. What number am I?

Which is heavier: a ton of bricks or a ton of feathers?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

What goes through cities and fields, but never moves?

I am white when I am dirty, and black when I am clean. What am I?