| 100% | BRAIN | 5 | What comprises 2% of the body's weight, but uses 20% of its energy |
| 84% | BRAIN | 5 | It makes up 2% of the body's weight, but uses 20% of its energy |
| 35% | EUROPE | 6 | It covers 2% of the earth's surface |
| 34% | DIGESTION | 9 | The body's process of absorbing and using food |
| 34% | TIP | 3 | It's often equal to 20% of the bill |
| 34% | EAR | 3 | Part of the body that becomes what it does if you put an H in front of it |
| 34% | ETHANOL | 7 | What about 40% of the U.S. corn crop is used for |
| 34% | FIRESTARTER | 11 | BBQ chef's accessory (or what the last part of 20-Across or 2- or 31-Down can be) |
| 33% | METRICSYSTEM | 12 | Many of the world's rulers use it |
| 33% | DATE | 4 | It's comprised of the day, month, and year |
| 33% | STUB | 4 | What's left of a ticket after it's used |
| 32% | CYCLE | 5 | What hitting the starts of 20-, 32-, 43- and 55-Across comprises, in baseball lingo |
| 32% | SCALE | 5 | It's used to measure body weight |
| 32% | PROSHOP | 7 | What might be in trouble if it's out of the woods? |
| 32% | CHAKRA | 6 | Energy point of the body in Hindu meditation |
| 32% | THINNER | 7 | It's used for the sake of consistency |
| 32% | NOAH | 4 | TV host who was the subject of the documentary "You Laugh but It's True" |
| 31% | STUB | 4 | What's left of a ticket after it's been used |
| 31% | REDSEA | 6 | Body of water that's parted in the Bible: 2 wds. |
| 31% | TOWEL | 5 | Use it to dry the body |
| 30% | INCOLOR | 7 | Unlike the original King Kong, but like many of its remakes |
| 30% | UPKEY | 5 | What's used to scroll to the top of a window |
| 30% | TEE | 3 | It's used for the first stroke of a golf hole |
| 30% | REARTIRE | 8 | What's on the back wheel of a bike: 2 wds. |
| 30% | NEWYEAR | 7 | It's celebrated on the evening of December 31: 2 wds. |
| 30% | LABORDAY | 8 | It's celebrated during the first week of September: 2 wds. |
| 30% | PROUDMARY | 9 | Girl in a Tina Turner song from the soundtrack of "What's Love Got to Do with It": 2 wds. |
| 30% | JUSTBROWSING | 12 | "Only window shopping," and what one might say when using the starts of 20-, 31-, and 46-Across |
| 30% | MATH | 4 | It comprises two sections of the SAT |
| 30% | MARGARETATWOOD | 14 | Author of the dystopian novel "The Handmaid's Tale" and its sequel, "The Testaments": 2 wds. |