Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

John was gifted a new Hayabusa. He drove x miles at 55mph. Then he drove x+20 miles at 40mps. He drove his bike for 100 minutes. How much distance did he travel?

What number when divided in half becomes zero?

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

A blonde put eyeliner on her head. Why?

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?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?