The question asks to find the number that should replace the question mark in the second cross, based on a pattern.

To solve this, let's examine each cross and look for possible relationships between the numbers:

Cross A:

  8
65  4
  4

A possible pattern here could be:

• $8 \times 4 = 32$
• $65 - 32 = 33$

This approach doesn't seem to work well. Let's instead sum all the numbers in this cross:

• $8 + 65 + 4 + 4 = 81$

This doesn't match any other clues directly, but let's hold this for now.

Cross C:

  14
13  163
  6

Sum of all numbers:

• $14 + 13 + 163 + 6 = 196$

Cross B (the one with the question mark):

  19
7  ?  12
  2

We don't know the pattern yet, but if we hypothesize that the sum of the numbers in this cross follows a similar pattern, we might solve it.

Assuming the sums of the crosses are similar:

• Cross A summed to $81$
• Cross C summed to $196$

The difference between the sums could be a pattern as well. Let's hypothesize that Cross B follows a similar rule. From the provided options (145, 125, 155, and 135), we can check by calculating the sum for each and determining which fits best with the other crosses.

Let me compute which option fits this pattern better.The total sums for Cross B with each option are:

• Option A (145): $185$
• Option B (125): $165$
• Option C (155): $195$
• Option D (135): $175$

Looking at Cross C, which sums to $196$, Option C (with a total of $195$) is the closest match. Hence, the best answer for the question mark is 155, which corresponds to Option C.

Do you want more details or have any questions?

Here are some related questions:

1. What other types of patterns can be used in number puzzles like this?
2. How can we verify patterns when multiple strategies might work?
3. Are there any common number patterns frequently used in puzzles?
4. Can sums of numbers often follow specific mathematical sequences in puzzles?
5. How do you approach such problems if no clear pattern emerges?

Tip: Always start with simple operations like addition, subtraction, multiplication, or division when solving number patterns.