Play with Patterns

Find the missing number in the middle: $10, 12, 14, \dots, 18, 20$

Identify the rule for: $80, 75, 70, 65, \dots$

Find the next number: $10, 25, 40, 55, \dots$

If a pattern of shapes is: Triangle, Square, Pentagon, Hexagon... what shape comes next?

A pattern follows: $\times, +, \div, \times, +, \dots$. What is the next symbol?

Observe: $\square \bigcirc, \bigcirc \square, \square \bigcirc, \bigcirc \square, \dots$. What is next?

If $A=1, B=2, C=3$, what is the sum of the letters in the word $CAB$?

If $RED$ is written as $SFE$ by moving one letter forward, what is the code for $BED$?

Remove the symbols to find the hidden word: $S\ast U\ast N$.