Find the missing letter in the last circle logically in the given below picture.

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 ?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

How can you make a TV, a bed, a dog, and a car liquid?

Which letter of the alphabet has the most water?

How many triangles are there on the puzzle below?

Sachin bought a car with a strange 5 digit numbered plate.The water image of the number is 78633 more than my car number. All the digits of car number are distinct.

What is the original number on number plate?

I cannot talk, but I always reply when spoken to. What am I?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

Count the squares in the matchstick puzzle below?