Can you count the number of quadrilaterals in the picture below?

There is a place where if I stand up straight, I will still be considered sideways.

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

The answer I give is yes, but what I mean is no. What was the question?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Once upon a time, there was a castle on a square island. The entire island was surrounded by a 14m wide trench. The Romans had wanted to invade the castle and had brought a few wooden planks along with them to facilitate themselves in crossing the moat. The planks were however found to be only 13m long.

The Romans still managed to cross the trench. How did they do it?

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 ?

Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?