What is harder to catch the faster you run?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

Can you find the key in the picture below?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

I am the fastest animal but cannot climb the tree. What am I?

John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

Two friends Smith and Andrew were talking about the bravery of their families. Smith told great stories about his courageous grandfather who fought for Britain in "World War I". Andrew told that his grandfather was so brave that in 1919 just after the war he was honoured with a bravery medal with the words "For our Courageous Soldiers In World War I" embedded into it. Smith knows that his friend is lying. How?

I can write cow in 13 letters.

Can You?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?