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

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?

Count the number of triangles in the picture below:

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

Buy me, smell me or deliver me, I do not change.

Who am I?