Intelligence imo is a combination of things - ability to grasp concepts, memory, intuition, logic, knowledge, decision-making, task speed, etc.
I am intelligent, I have been told so by people and I believe I am. I am cerebrally quick. However, some concepts go beyond my head. I am not very creative or intuitive, admittedly. However, I have a phenomenal ability to remember dates and facts, especially long-term things. I have been commended for this, and it's come in use many times. I am very quick at doing tasks too, but am not really knowledgeable admittedly. I would still say I'm intelligent.