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

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

You are given four tennis balls and asked to arrange those balls in a manner that the distance between each one of them is exactly equal. How will you do it?

Using Only Five 5's and any mathematical operator make sum as 37

With the help clues provided in the image, can you find the 5 digit key?

Count the number of squares in the picture below.

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?