Human Body Riddles: 30 Riddles About Your Amazing Body

I’m about the size of your fist, and I beat all day and all night, even while you sleep. What am I?

There are two of us in your chest. We fill up like balloons when you breathe in and get smaller when you breathe out. What are we?

When you’re little, some of us wiggle loose and fall out, and bigger ones grow in our place. What are we?

I sit in the middle of your face. I can smell cookies baking, and sometimes I go “achoo!” What am I?

I help you taste sweet, salty and sour, and I help you talk. I live in your mouth. What am I?

There are two of us. We see colors, we cry tears, and we blink many times every minute without you noticing. What are we?

I cover you from your head to your toes, and I’m the biggest organ of your body. What am I?

I’m hard and made of many pieces. Without me, you’d flop on the floor like a pile of jelly. What am I?

There are two of us, one on each side of your head. We hear sounds, and deep inside, we also help you keep your balance. What are we?

I’m one of your five senses. Your eyes can’t do me and your ears can’t do me, but your fingertips are experts at me. What sense am I?

I weigh only about 1.4 kilograms (3 pounds), but I use about a fifth of your body’s energy. I tell every other part what to do. What am I?

I’m a stretchy bag that churns your food and mixes it with strong acid. A slimy lining keeps me from digesting myself. What am I?

I’m a long, narrow tube coiled up in your belly. Stretched out, I’d be much longer than you are tall, and I soak up most of the goodness from your food. What am I?

I’m the longest and strongest bone in your body, and I’m in your thigh. What am I?

I’m the smallest bone in your body, about the size of a grain of rice, and I’m shaped like a stirrup. Where am I?

I’m the biggest organ inside your body. I clean your blood, store energy, and I can even grow back if part of me is removed. What am I?

There are two of us, each about the size of a fist and shaped like a bean. We filter your blood and make urine. What are we?

I’m a dome-shaped muscle under your lungs, and I pull down every time you breathe in. When I twitch by surprise, you get the hiccups. What am I?

I’m made of loops, whorls and arches, and no two people have the same ones, not even identical twins. What am I?

I’m the black circle in the middle of your eye. I get bigger in the dark and smaller in bright light. My name is also a word for a student. What am I?

Everybody has one, right in the middle of the tummy. It’s a small scar left by the cord that fed you before you were born. What is it?

A newborn baby has around 300 bones, but an adult has only 206. None go missing, so where do the others go?

People call me funny and call me a bone, but I’m neither. Bump me at the elbow and a zinging tingle shoots down to your little finger. What am I really?

Tiny muscles pull your body hairs upright when you’re cold or scared, and your skin puts on a bumpy show. What is it called?

If your heart beats 70 times a minute, roughly how many times does it beat in one day?

Name ten parts of the body that are spelled with only three letters. No slang allowed.

You can hold me without using your hands, but not for very long. What am I?

I’m a small pouch attached to your large intestine. For a long time people thought I was useless, but scientists now think I may store helpful gut bacteria. What am I?

I’m made of the same tough protein as your hair and a rhino’s horn, and I grow on the tips of your fingers and toes. What am I?

You started life as just one of me. Now you’re made of tens of trillions of us. What am I?