What has one letter and starts with an E?

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

What question can you never answer yes to?

When is the top of a mountain similar to a savings account?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

I look at you, you look at me, I raise my right, you raise your left. What am I?

What Time Should the last watch show in the below figure?

Find the Odd One Out?
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47632
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