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?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT

What has a bottom at the top?

Which tank will fill first?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

Different lights make me strange by changing me into different sizes. What am I?

1. What does:
TIM JOB
represent?

2. What does:
MO_ _
represent?

Below, you can see three complete equations and one incomplete. Based on the three complete ones, can you complete the incomplete one?

5 $ 4 $ 3 $ 9 = 4215
6 $ 9 $ 2 $ 6 = 3816
4 $ 7 $ 3 $ 3 = 1122
7 $ 2 $ 7 $ 4 = ____

If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have?