5 questions
Environment
Our Planet: The Basics
Ten minutes on Earth, its air, its water and its weather.
Start quiz →Sample content
Think & Solve
Thinking, disguised as playing
Quizzes, riddles, logic puzzles and brain teasers — the same kind that fill six pages of every printed edition. No score is saved. Play as many times as you like.
Quizzes
Test what you know
Every answer comes with an explanation, so a wrong one is worth as much as a right one.
5 questions
4 questions
Nature & Wildlife
Wild India
Birds, big cats, forests and the places they live.
Start quiz →Sample content
4 questions
General Knowledge
Think It Through
No facts to memorise — just careful reasoning.
Start quiz →Sample content
Puzzles & brain teasers
Have a proper go before you peek
Riddles, logic, word ladders and number patterns. The answer is always hidden until you ask for it — and it always explains itself.
Logic PuzzleSample content
The River Crossing
A farmer must take a goat, a wolf and a cabbage across a river. The boat holds the farmer and only one other thing. Left alone, the wolf will eat the goat, and the goat will eat the cabbage. How does everything get across safely?
Need a nudge? Show hint
Nothing says you can only bring things across. You are allowed to take something back.
Had a proper go? Check the answer
Take the goat over. Come back empty. Take the wolf over, and bring the goat back with you. Leave the goat, take the cabbage over. Come back empty, then take the goat over last.
What this teaches: The step most people never think of is going backwards. Many problems only open up once you allow a move that seems to undo progress.
RiddleSample content
Alive Without Breath
I am alive without breath and as cold as death. I am never thirsty, though I always drink. What am I?
Need a nudge? Show hint
You would find me in a river, a bowl, or on the end of a hook.
Had a proper go? Check the answer
A fish.
What this teaches: Riddles work by describing something true in an unfamiliar way. A fish really does 'drink' — many freshwater fish take in water constantly through their gills and skin.
Logic PuzzleSample content
The Two Jugs
You have a 5-litre jug and a 3-litre jug and a tap. Neither jug has markings. How do you measure out exactly 4 litres?
Need a nudge? Show hint
Filling one jug from the other leaves a known amount behind. That leftover is the useful part.
Had a proper go? Check the answer
Fill the 5. Pour from it into the 3 until the 3 is full — 2 litres are left in the big jug. Empty the 3 and pour those 2 litres into it. Fill the 5 again and top up the 3, which only takes 1 more litre. Exactly 4 litres remain in the 5-litre jug.
What this teaches: You never measured 4 directly. You built it from differences. Combining known quantities to reach an unknown one is the heart of a great deal of mathematics.
Word GameSample content
Word Ladder: COLD to WARM
Change COLD into WARM one letter at a time. Every step in between must be a real English word. Four steps will do it.
Need a nudge? Show hint
CORD is a good second rung.
Had a proper go? Check the answer
COLD → CORD → CARD → WARD → WARM
What this teaches: Word ladders were invented by Lewis Carroll, who wrote Alice's Adventures in Wonderland. They train you to hold a target in mind while taking small steps towards it.