Some of you will stay inside where it’s warm and play poker this weekend, so today’s mentalfloss.com Brain Game Free-for-All Friday challenge will give you something to discuss while you’re trying to bluff you way through. Good luck!

Not including straight-flushes or royal flushes,
how many different possible card combinations
result in a flush in a standard 5-card poker hand
from a single deck (no jokers or wild cards)?

Today brings with it a new mentalfloss.com Brain Game Think Thursday challenge. Good luck!

The same three-letter word can be placed at the beginning of each of the following five words to form other English words. Identify this three-letter word.

EAR, OWING, ANGERED, LESS, GAME

Here’s a new Wednesday Wordplay puzzle for today’s mentalfloss.com Brain Game. Good luck!

Here’s a list of six 10-letter words, with one word missing:

LEGISLATOR
ALLEGORIST
INFURIATED
UNRATIFIED
??????????
MEASURINGS

Which of the following 10-letter words belongs in the missing spot above, and why?

SISTERHOOD
REASSUMING
DISCREETLY
PROPERTIES

A world map or globe might help you solve today’s Tuesday Test Time challenge, but it’ll still take some looking around to gather all five answers for today’s mentalfloss.com Brain Game. Good luck!

The short-form English names of
what FIVE nations of the world
end with the letter L?

You’ll find the rare “double divide” in the middle horizontal row of the Monday Math Square for today’s mentalfloss.com Brain Game. Good luck!

The nine white squares inside the main red grid should be filled with the digits 1 through 9. Each digit should appear only once in this main grid (the red square). Place the digits 1 through 9 in their correct spots so that the mathematical equations work both across and down.

First things first: Congratulations to Maria, who won our “Extremely Short Story” challenge in last Friday’s mentalfloss.com Brain Game. She wins a Collector’s Edition DVD Boxed Set of the comedy film Monty Python and the Holy Grail, compliments of mental_floss magazine! See her entry (and all the others) by clicking here. Now, on to today’s Free-for-all Friday puzzle. Enjoy!

You’re looking at a standard digital clock that tells time using the standard 12-hour U.S. format. The device uses standard seven-segment LEDs, whose digits appear as follows:

With this information in mind:

What time of day would light up the MOST
number of segments on the clock’s face?

Here’s a new mentalfloss.com Brain Game Think Thursday challenge. Good luck!

Which of these presidential first names don’t belong with the other three, and why? HINT: The answer specifically involves the first names, not the lives or policies of the men behind them. And no, the answer is not “only one doesn’t end in the letter Y.”

BILL (Clinton)
HARRY (Truman)
JIMMY (Carter)
TEDDY (Roosevelt)

Music isn’t a typical Wednesday Wordplay subject, but we like to keep you on your toes here at the mentalfloss.com Brain Game. Good luck!

The name of ONE of the five musical instruments in the following list is misspelled. Identify the culprit:

CLAVICORD
DIDGERIDOO
FLUGELHORN
PICCOLO
SAXOPHONE

Looking into the sky may not help you solve today’s Tuesday Test Time challenge for today’s mentalfloss.com Brain Game, but that’s where you’ll find the answer. Good luck!

Off the top of your head, which of
the six vowels (A, E, I, O, U, Y)
do NOT appear in the names of ANY
of the planets in our Solar System?

Get ready for the next entry in our long-running series of Monday Math Squares for the mentalfloss.com Brain Game. Good luck!

The nine white squares inside the main red grid should be filled with the digits 1 through 9. Each digit should appear only once in this main grid (the red square). Place the digits 1 through 9 in their correct spots so that the mathematical equations work both across and down.