Answer: Option B. -> 6567
:
B
The given sequence is 2123 , 3234, 4345, 5456, _____.
We split the above sequence into four.
The sequence of the digits in the thousands place is 2, 3, 4, 5. Hence, the next term should be 6.
The sequence of the digits in the hundreds place is 1, 2, 3, 4. Hence, the next term should be 5.
The sequence of digits in the tens place is 2, 3, 4, 5. Hence, the next term should be 6.
The sequence of digits in the units place is 3, 4, 5, 6. So, the next number should be 7.
Considering all conditions, the next term of the sequence is 6567.

Answer: Option B. -> 1218
:
B

 

Answer: Option A. ->  XZY
:
A

In the given pattern A = Z ; B = Y ; C = X ; D = W

$\therefore$ CAB = XZY

Answer: Option B. ->  4
:
B

$\begin{array}{ccc}I& am& good\\ \downarrow & \downarrow & \downarrow \\ 1& 3& 4\\ Life& is& good\\ \downarrow & \downarrow & \downarrow \\ 5& 2& 4\end{array}$

In both the sentences good is represented as 4.

Hence  good =$\underset{–}{4}$

Answer: Option C. -> 20 26 15 26 3 2
:
C

Here, each alphabet is represented with the number given below it.

$\Rightarrow G\to 20,A\to 26,L\to 15,X\to 3,\text{and}Y\to 2$
$\therefore GALAXY\to 2026152632$

Answer: Option D. ->
:
D
In the pattern given above, each blue triangle has one more row of white triangles inside them than the previous one.
Also, the number of white triangles in the second row is one more than the number of triangles in the first row, if the blue triangle has white triangles inside it.
So, the next figure in the sequence will have 3 rows of white triangles and the first row will have 3 triangles.
So the figure that will come next in the pattern is :

Answer: Option B. ->  &!^
:
B

Since T = &, A = !, B = ^

$\therefore$ TAB = &!^