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

John had a bag containing colourful marbles. The colours are red, green and blue. The total number of marbles he had in his bag was 60. There are 4 times as many red marbles as green marbles. 6 more blue marbles than green marbles. How many marbles of each colour did John have?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

Using exactly three matchsticks, can you divide the area into two equal parts?

Can it be possible to build a house that has all its four walls facing towards the South?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

Identify the hidden meaning behind this picture?

Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Candy?