Complete the table series riddle by finding the number that can replace "??".
If you say my name, I will no longer exist. What am I?
If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?
Can you find out which number multiplied by itself will give the output as 12345678987654321?
How many words can a pen with half refill write?
Can you find out the missing number in the grid?
No one wants to have it, but if one got it, he does not want to lose it. What is It?
I am a white box having no key or lid. Yet there is a golden treasure inside it. What Am I?
A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it? Hint: Figure out the relation between time and number, is not so easy..:)
A man dies of old age on his 25 birthday. How is this possible?
Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
