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

Can you place six X (crosses) in below board without making three in a row in any way ?

A kind heart person buy packed food at 3$/packet from United states and sells them at 1$/packet at Africa. After some time he becomes a millionaire.

How come the guy become millionaire ?

There is a circular car race track of 10km. There are two cars, Car A and Car B. And they are at the exact opposite end to each other. At Time T(0), Both cars move toward each other at a constant speed of 100 m/seconds. As we know both cars are at the same speed they will always be the exact opposite to each other.
Note, at the center, there is a bug which starts flying towards Car A at time T(0). When the bug reaches car B, it turns back and starts moving towards the car A. The speed of bug is 1m/second. After 5 hours all three stop moving.
What is the total distance covered by the bug?

What seven-letter word has hundreds of letters in it?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

Which five letter word can be added at the end of below word to form a
valid word?

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By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

What is next number in the pattern below:

131 517 192 123 ?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day