Find out the wrong term from the given series.
$125, 126, 124, 127, 123, 129$

Choose the correct alternative to complete the series: $....be...bb....aabc$

These questions are based on the following set of numbers.
$389 \quad 476 \quad 635 \quad 847 \quad 568$
Which number will be the smallest if the first and the last digits are interchanged in all the numbers?

Which of the letters will come next in the following series?
$a, ab, abc, abcd, abcde, abcde, ?$

Find the missing letters for the given series from the given alternatives.
$b....b...bb....,.....bbb.....bb....b$

If the digits in the number $5, 7, 3, 4, 6, 2, 9$ are arranged in ascending order from left to right,how many digits will remain at the same position?