A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?
Prove that twice of ten is the same as twice of eleven.
Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true. * * x * ===== * * *
There is a shop where written: Buy 1 for $1 10 for $2 100 for $3 I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?
What number comes next in this sequence: 7 8 5 5 3 4 4 _
How can one talk without saying a single word?
What does this say? XLR8
Find the next number in the sequence 5 12 24 36 ?
Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?
In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?
Spot 5 differences in two Christmas tree below:
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.