1. In the following number series a wrong number is given. Find out the wrong number.
1, 3, 10, 21, 64, 129, 356, 777

2. What will come at the place of question mark?
2, 3, 6, 15, ?, 123

3. What will come at the place of question mark?
6, 13, 28, 59, ?, 249.

4. What will come at the place of question mark?
9, 27, 31, 155, 161, 1127, ?

5. Sunday- Monday, Wednesday- Saturday, Wednesday- Monday, .....

6. What will come at the place of question mark?
5690, 5121, 4552, 3983, 3414, 2845, ?

7. What will come at the place of question mark?
4, 8, 10, 14, 16, 20, ?

8. What will come at the place of question mark?
9, 17, 33, 65, ?

9. What will come at the place of question mark?
2, 7, 27, 107, 427,?

10. What will come at the place of question mark?
2816, ?, 176, 44, 11.