With exercise, sometimes the simplest of movements result in the greatest gains to your fitness, and this is certainly the case with planks. To do a plank, you hold your body (the trunk portion) off the ground, making sure to hold it in a straight line.
CVV numbers are also known as CSC numbers (Card Security Code), as well as CVV2 numbers, which are the same as CVV numbers, except that they have been generated by a 2nd generation process that makes them harder to guess.
CTC basically stands for Cost to company. Cost to company is the total cost that an employee is incurring in a company. This includes the cash components plus other benefits like Bonus, Food etc. which are in general not seen in your regular Monthly Salary.