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

What work can one never finish?

I have teeth but i don't bite. Who Am I ?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

A bus driver was heading down a street in Mexico. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?