Expire is not really the right term; but effectively yes. In general a cheque older than six months will be considered stale-dated and will not be honoured. Reference the Canadian Payments Association FAQ.
SKYACTIV is a brand name for a series of technologies developed by Mazda which increase fuel efficiency and engine output. The initial announcement of the SKYACTIV technologies include new engines, transmissions, body, and chassis, which appeared in Mazda products from 2011.
Tech Mahindra, Bosch Software Innovations to set up an Internet of Things ecosystem. Tech Mahindra has partnered with the software and system house of the Bosch group, Bosch Software Innovations to create an Internet of Things (IoT) Ecosystem to help drive innovative solutions for connected applications and enterprises.