Found an old IQ problem that came up in an earlier job search. Still don't know how to solve it. I tried counting the number of edges/ faces and flipping the diagrams, but I can't see the trick.

I'm trying to solve puzzles to exercise my brain. I'm stuck on this. Can someone help me? Below is the test:

Currently, everywhere on the SE network, communities are limited to 5 tags per question: However, puzzles can meet many different tag criteria and as such, 5 doesn't always seem right. For example, I'm currently writing a puzzle that technically qualifies for the lateral-thinking, knowledge, c...

Saw this question in the book, "A Moscow Math circle" by Dorichenko. Eighteen 2x1 dominoes cover a 6x6 board without overlapping each other or the sides of the board. Prove that, for any such arrangement, it is possible to cut the board into two pieces along a vertical or horizontal line without...

I have here a happy heptet of little riddles, or is it an octet? =============================== His eyes were plucked out by the tip of a knife, And his skin was shaved off with the blade. He was then left over a roaring flame, In a roiling cauldron to bathe. When this was done, they whisked him...

I've spent way too much time on the computer today; but, at least you get a puzzle out of it! Boast all you want, I'll even give you the answers... I won't remain in the dark without you. Nothing compares to the light in I do. Answers are tested. Relationships vested. You'll find what you need,...

This question is part of the best-puzzle award series. What are your nominations for the best puzzles, here on Puzzling.SE, of the first quarter ( January / February / March) 2021? Suggested guidelines for nomination: Nominate each individual puzzle in a separate answer, so they can be upvot...

This question is part of the best-puzzle award series. What are your nominations for the best puzzles, here on Puzzling.SE, of the second quarter ( April / May / June) 2021? Suggested guidelines for nomination: Nominate each individual puzzle in a separate answer, so they can be upvoted/down...

These are internet Tabs. Hint :

A man entered a store and spent one-half of the money that was in his pocket. When he came out he found that he had just as many cents as he had dollars when he went in and half as many dollars as he had cents when he went in. How much money did he have on him when he entered?

This Minesweeper looks unsolvable; is it normal to reach a state considered unsolvable in Minesweeper expert mode?

You've most likely heard of the eight queens puzzle, right? Where you have to place n chess queens on an n * n board so that no queens attack each other (boy, those must be some very angry monarchs!)? Well...what if, instead of queens, you had to place chess knights on an n * n board? What's the ...

What word goes in the box with the question mark?

If 4 + 4 = 8 10 - 5 = 5 5 x 1 = 5 8 - 1 = 7 2 + 4 = 7 Then, 8 / 1 = ? Is it 6 or 7 ?

In three monographs published in 2006, 2008 and 2014 Gerard 't Hooft considered "Meccano mathematics": how to construct specified distances and regular polygons by a rigid system of ideal Meccano strips, where the distance between adjacent holes on a strip is 1. He showed in the first monograph t...