Please help the science dept!
A Petri dish hosts a healthy colony of bacteria. Once a minute every bacterium divides into two. The colony was founded by a single cell at noon. At exactly 12:43 (43 minutes later) the Petri dish was half full.
At what time will the dish be full?
Can you figure this out:
At some time in the future, Simon will be 38 years old. At that time, he will be three times as old as Gill. Gill is now 7 years old. How old is Simon now?
Answer to last month’s brainteaser:
Today is the 1st January and yesterday was the 31st December. James turned 8 yeaterday. Obviously, he was still 7 on 30th December and will, therefore, turn 9 this year and 10 the year after.
The following are clues that describe words containing an “ant”. The clues do not refer to the words themselves, rather they refer to the word that must be added to the “ant”. For example, “an ant that is waiting for something to happen” would be “expectant” (expect ant). The ant may appear at the beginning or the end of the word. Where it appears is given in the hint should you need it.
1. This ant will rely on you.
2. The end of an ant’s trousers.
3. The first ant.
4. This will burn an ant severely.
5. Two ants going to get married in secret.
6. This ant rides up sloped driveways
Hint: the “ant” appears at the beginning of 2, 4, and 5 and at the end of 1, 3, and 6.
Answers will be added right here with next month’s blog!