What four weights can be used to balance from 1 to 30 pounds?

Count the number of balls in picture below:

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

You visit a home for specially-abled children on the occasion of Christmas where you meet with 50 children. You have a box of chocolates containing 50 chocolates exactly.

What if you were asked to one chocolate to each child in a manner that one chocolate still remains in the box? Is it possible?

What kind of storm is always in a rush?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

What can you deduce from the following BrainBat?

CRY
LMKI

They are three errirs in this question. Can you find them?

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?

Rectify the following equality 101 - 102 = 1 by moving just one digit.