Solve this riddle by finding the odd one out from the rest.

What is the fastest way to double your money?

A sundial has the fewest moving parts of any timepiece. Which has the most?

What has one eye, but can’t see?

Using Only Five 5's and any mathematical operator make sum as 37

There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?

A man always keeps a spare tyre in his car. To make full use of all the five tyres, he changes the tyres in a manner that for a distance of 1, 00,000 km, each of them runs the same distance.

Can you calculate the distance travelled by each tyre on that journey?

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

Can you find out the number that should replace the question mark with a valid reason?