What begins with T, ends with T, and has T in it?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

What does below rebus means ?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

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

what does this picture(rebus) riddle means ?

You bought me for dinner but never eat me. What am I?

What can go up a chimney down, but can’t go down a chimney up?

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?