Can you solve this amazing hard number series problem? 7, 8, 10, 12, 16, 18 ?
You measure my life in hours I serve you by expiring I vanish faster when I am thin and slower when I am thick The wind is my energy What am I?
In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?
I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?
I never was there, I am always to be. You have never ever seen me, not ever you will. Yet I am the confidence of everyone. Who Am I?
Cristina was born in 1888. She just had her 30th birthday today how did that happen?
What goes up but never comes down?
I got a bee but no honey. got an eye but am still blind. got a sea but no water. got a tea but no coffee. got a why but no answer. What Am I?
What has many keys but can’t open a single lock?
'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?
1 dollar = 100 cent = 10 cent x 10 cent = 1/10 dollar x 1/10 dollar = 1/100 dollar = 1 cent => 1 dollar = 1 cent solve this tricky problem?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
