Be active and find the killer in the picture Riddle below.

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

Rose, Lily and Jasmine decided to buy flowers for their moms on Mother's Day. One of them bought lilies, the other roses, and the third one jasmines.
'It's funny!' said the girl with roses, 'we bought roses, jasmines and lilies, but none of us bought the flowers matching her name'.
'You're right!', said Lily.
What kind of flowers did each of the girls buy?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

What is the fastest way to double your money?

When does a USA Potato change its nationality?

What is the difference between a jeweller and a jailer?

Can you spot the hidden girl in the picture below?