What has 13 hearts but no other organs?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

In which direction should the missing arrow point?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

Move three sticks of the spiral below to form a square.

There are two dice with empty faces in front of you and a marker. You can mark any number on each of the faces of the two dice, but you have to display all 31 days of the month using the two of them.

Which numbers will you mark on which dice so that you can easily depict all the dates of the month?

What's a single-digit number with no value?

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

What does it mean?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?