Quazarread
Your magazine
October 2026
Puzzles
Each one uses a trick from the page. Type your answer and it's checked straight away.
M1Watch it double
In cooler soup, one bacterium splits into two every 30 minutes, and so does every new one. How many bacteria are there after 4 hours?
Like card 1 · page 14Answer
M2A shorthand for doubling
Starting from 1, what is the smallest number of doublings that gives more than 5,000? Tip: start from 2¹⁰ = 1,024.
Like card 3 · page 14Answer
M3Count, then count again
In another forest the cameras catch 30 jaguars in season 1 and 24 in season 2. 8 of those 24 were seen in season 1. About how many jaguars live there?
From page 15Answer
From page 16Answers and working
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