Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

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

I am 5 letters long.
My first two tell you who I am
My first 3 could be a medicine
My last three reversed could be a young boy.
My 4th, 3rd and 2nd in that order could be a fruit drink.
If you have me you may hang me round your neck
WHAT AM I ?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

A and B have a certain number of chocolates with them. If B gives one chocolate to A, they will have an equal number of chocolates. But if A gives one chocolate to B, then A will be left with half the number of chocolates that B has.

Can you find out the number of chocolates they have right now?

I have branches, but no fruit, trunk or leaves. What am I?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?