There is a box full of marbles, all but two are blue, all but two are green, and all but two are red. How many marbles are in the box?
Which is faster, Heat or Cold ? Explain.
John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?
How many words can a pen with half refill write?
Analyze and find the missing item in the sequence: 16, 06, 68, 88, __, 98
What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?
Can you complete the sequence puzzle? AR TA GE CA LE VI LI _
Find the next number in the sequence 5 12 24 36 ?
Can you count the number of triangles in the picture below?
How can you drop a raw egg from a height onto a concrete floor without cracking it?
Which five letter word can be added at the end of below word to form a valid word? > Pin > Check > Boiling > View
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
