By what process could you make a 'Tea-Table' into food?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

What breaks yet never falls, and what falls yet never breaks?

What am I?

Where do you go to learn how to make ice cream?

What part of the chicken has the most feathers?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

How is the moon similar to a dollar?