# What goes in the box? [closed]

This is a riddle I encountered recently and I can't solve it.

What goes in place of the question mark? No other info is given.

EDIT: Apparently there are a lot of possible answers, so I'll give some extra info on the context in which I found this riddle. I found it in a schoolbook for children of about 10 to 12 years old. It's a Flemish textbook, so all word related answers should be with Dutch words. However, since this riddle was in a chapter about patterns and lists, I'm inclined to go with Radhato's answer.

• Questions such as this are typically closed for being too broad, as the number of possible answers/explanations is very high. If you have any more information (What context was this riddle given in? Is this part of a set of similar puzzles?) that could help narrow the options, I would recommend adding it. Commented Jun 23, 2016 at 18:45

One of the many possiblities:

B

As

Considering the sum of characters in each row remain constant
C+F+O = 3+6+15 = 24
U+A+B = 21+1+2 = 24

Given we have no information there could be a lot of possible answers..
One I've come up with is (the one that seems the most plausible to me)

J

Because

The letters 'a' and 'c' have one between them (b), the letters 'c' and 'f' have two between them (d, e), therefor the next letter would be J (F..g..h..i..J) to continute the pattern with three letters in between.
'J' to 'O' (k l m n = 4)
'O' to 'U' (p q r s t = 5)

R

Because

U - F - O and C - A - R (both vehicles?)

• UFO is not a vehicle. It stands for "Unidentified flying OBJECT". everything that flies and you cannot identify is an UFO until you identify it. Commented Jun 23, 2016 at 12:13
• I see @marius, was just another random idea that came to my mind while looking at the picture Commented Jun 23, 2016 at 19:49

It could also be

any of: A, B, D, F, K, L, N, O, P, R, U, W

Using the logic that

There is a missing third row where all letters are equal and reading columns top-to-bottom form words:
CUT, FAT, OAT
CUE, FAE, OBE