EVERY DAY DURING Maths Week, we came up with a little puzzle to wreck your head.

And the scientists of Ireland wanted in. So to celebrate Science Week, which launched Sunday, we have a different brainteaser for you every day this week.

If you want to start from the beginning, click here.

And here’s tonight’s first puzzle:

You have to get a bag of grain, a chicken and a fox across a river. You are only able to bring one item over at a time.How do you get all three items across safely, without the fox eating the chicken or the chicken eating the grain?

Some of you may know that one already, so here’s another:

On what three parts of the body does hair not grow?

Answers will be revealed on Friday. But if you want to start a discussion, feel free to leave your answers in the comments section.

See the rest of the week’s questions here>

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Science Week: A question to tease your brain on a Thursday night

See the rest of the week’s questions here>

Making a difference

A mix of advertising and supporting contributions helps keep paywalls away from valuable information like this article. Over 5,000 readers like you have already stepped up and support us with a monthly payment or a once-off donation.