If ROSE is coded as 6821, CHAIR is coded as 73456 and PREACH is coded as 961473, what will be the code for SEARCH?

Find the odd man out

A certain code 564 means all the best, 736 means best of luck and 423 means all is luck. Which of the following is the code for luck?

Identify the next number in the following series: 2, 8, 26, 62, 122, 212, _______

Find the missing number in the given series: 4, 18 ______, 100, 180, 294, 448

Find the odd man out from the following: 445, 221, 109, 46, 25, 11, 4

Find out the next number in the following series $\displaystyle 7, 11, 13, 17, 19, 23, 25, 29$?