Halloween Brain Teasers with Answers

Four vampires order a coffin-shaped pizza cut into eight equal slices. They share it evenly. How many slices does each vampire eat?

Three doors lead out of a haunted mansion. Ghost A says, Door B is safe. Ghost B says, Door C is unsafe. Ghost C says, Ghost B is lying. Only one ghost tells the truth. Which door is safe?

Three witches carve three pumpkins in three minutes. At that rate, how many witches are needed to carve 30 pumpkins in 30 minutes?

A coven meets every 6 nights; a warlock council meets every 8 nights. They meet together tonight. In how many nights will they meet together again?

Six skeletons gather for a boneyard mixer. Each greets every other skeleton with a bony handshake once. How many handshakes occur?

A cauldron holds chocolate eyeballs and gummy worms in a 3:2 ratio. If there are 60 pieces total, how many gummy worms are there?

You have a 5-cup and a 2-cup jug. How can you measure exactly 3 cups of swamp-brew potion?

A haunted hotel has 20 floors, but the ghost elevator refuses any floor whose number contains a 4 or 9. How many floors can the elevator visit?

Trick-or-treaters need 4 minutes per house. How long to visit 12 houses in a row?

Three jack-o'-lanterns blink on cycles of 2, 3, and 5 minutes. If they blink together now, when will they blink together again?

During a full-moon stakeout you spot 24 glowing eyes in the bushes. Two campers are hiding there as well. How many wolves are watching you?

A jar of spectral spiders doubles its webbing every hour. If the jar is full at midnight, when was it half full?

A haunted corridor has room numbers whose digits add with their reverse to make 99. Which two-digit room should you choose to escape?

A candy cauldron starts with 10 candy corns and 7 chocolate bats. Each visitor takes two sweets: if the pieces match, they drop a chocolate bat back; if they differ, they drop a candy corn back. When only one candy remains, what is it?

If 5 ghosts haunt 3 houses equally, how many ghosts per house?

A witch brews 12 potions in 4 hours. How many potions in 10 hours at the same rate?

How many legs do 3 spiders and 2 black cats have altogether?

A pumpkin patch has 5 rows of 8 pumpkins. How many pumpkins total?

If candy is split among 6 kids with 4 pieces left over, what is the smallest number of candies?

A haunted maze has 4 paths. You try 2 wrong paths before finding the exit. How many paths remain untried?

What belongs to you but others use more than you do?

What gets bigger the more you take away?

What is so fragile that saying its name breaks it?

What is always coming but never arrives?

What question can you never answer yes to?

I am the escape room puzzle with a vampire theme. What am I?

I am the October math warm-up on the board. What am I?

I am the trick-or-treat bag weighed after the route. What am I?

I am the team cheering when the logic puzzle clicks. What am I?

I am the haunted house room with one final riddle. What am I?