I recently took this somewhat interesting test meant to identify the sex of your brain and help researchers. Here are my results, slightly abridged for formatting:

Angles

This task tested your ability to identify the angle of a line by matching it with its twin. This is a spatial task, which looks at how you picture space.
Your score: 20 out of 20
Average score for men: 16.4
Average score for women: 14.7

What does your result suggest? You have more of a male brain. On average, men outperform women in this task and those with more mathematical knowledge tend to score quite high as well. In past studies, 60 per cent of the people in this range were men.

Spot the difference

This task tested your ability to identify which objects changed position
Your score: 100%
Average score for men: 42%
Average score for women: 57%

What does your score suggest? Those with a female-type brain generally score in this range. Your ability to remember where objects are may serve as an advantage to you when you’re trying to find your way around places. You’re more capable of recalling landmarks to get from one place to another.

Hands

You said your LEFT thumb was on top when you clasped your hands together. This suggests the right half of your brain is dominant. Some studies theorise that as a right brain dominant person, you may excel in visual, spatial and intuitive processes. However, these theories are debatable and leave much to be said about the small percentage of people who are ambidextrous.

Emotions and Systems

This task looked at whether you prefer to empathise or systemise.
Empathy
Your empathy score is: 6 out of 20
Average score for men: 4 - 12
Average score for women: 8 - 15

Eyes

This task tested your ability to judge people’s emotions.
Your score: 10 out of 10
Average score: 6 - 9

What does your result suggest? Your result suggests you are a good empathiser, sensitive to other people’s emotions. Women generally fall into this category.

Fingers

We asked for the measurements of your ring and index finger. Your ratio came to:
Right Hand: 0.92
Left Hand: 0.92

Average ratio for men: .96
Average ratio for women: 1.00

It’s thought that your ratio is governed by the amount of testosterone you were exposed to in your mother’s womb. The ratio of the length of your index finger to the length of your ring finger is set for life by as early as three months after conception. Even during puberty, when we experience intensive hormonal changes, the ratio stays the same. Men generally have a ring finger that is longer than their index finger, which gives them a lower ratio than women, whose ring and index fingers are usually of equal length.

Faces

This task looked at how you rate the attractiveness of a series of faces. The images you looked at were digitally altered to create slight differences in masculinity.

Your choices suggest you prefer more feminine faces. Highly masculinised male faces possess more extreme testosterone markers such as a long, broad and lower jaw, as well as more pronounced brow ridges and cheekbones. A typical ‘attractive’ female face possesses features such as a shorter, narrower, lower jaw, fuller lips and larger eyes than an average face.

3D shapes

This task tested your ability to mentally rotate 3D shapes.

Your score: 10 out of 12
Average score for men: 8.4
Average score for women: 6.4

What does your result suggest? Are you an engineer or do you have a science background? People with these skills tend to score in this range. Past studies have concluded that people in this range have a more male brain.

Words

This task looked at your verbal fluency.

You associated 0 word(s) with GREY [I don’t know why it thinks this - I put it about 7] and you named 15 word(s) that mean happy. We are assuming that all the words you entered are correct. Scientists will be analysing your results in more detail.
Average score: 6 - 10 words

What do your results suggest? Most people in this range have a female-type brain.

Ultimatum

This task asked you how you would divide money. If someone offered you £50, you said you would demand £10. On average, people offer 35 to 40% of the pot. Sex differences are small in this task. An offer of more than 40 per cent of the pot (ie £20) is more typically female and an offer of less than 35 per cent of the pot (ie £17.50) is more typically male. Scientists believe that people with lower testosterone levels tend to take fewer risks so they are probably more willing to keep less for themselves. Those with higher testosterone levels tend to drive a harder bargain and are less compromising.