Active Smart Brain Sequencer

Use pattern logic to guess the next correct number in the sequence.
The rules are simple: Read the number pattern and select the next number in the sequence. Some patterns are ascending and descending orders.
Players have literally a second to answer the question. Game is over if player run out of time or answer incorrectly.
The questions get progressively hard as more questions appears.
HERE ARE SOME SEQUENCE PATTERNS:
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1) Constant numeric addition, ascending or descending order
2) Repeating pattern
3) Gradual numeric addition, ascending or descending order
4) Increase by a preset numeric value

4 GAME DIFFICULTY:
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1) Basic
2) Easy
3) Medium
4) Hard