Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

(2 + 6), (21 + 6), (58 + 6), (119 + 6), ___

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Find the number of squares in the below-given picture.