15 caves are arranged in a circle at the temple of doom. One of these caves has the treasure of gems and wealth. Each day the treasure keepers can move the treasure to an adjacent cave or can keep it in the same cave. Every day two treasure seekers visit the place and have enough time to enter any two caves of their choice.

How do the treasure seekers ensure that they find the treasure in the minimum number of possible days?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Solve this riddle by finding the odd one out from the rest.

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Imagine you are in a room with no windows or doors. How will you get out?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

Can you write down eight eights so that they add up to one thousand?