Math Riddles

Question: What is half of 2+2?

Question: Sam has two sons named Nathan and Daniel, Daniel is exactly 5 years older than Nathan and Daniel was born on February 29th 1996. How old is Nathan?

Question: If 1+1=2, 2+2=8, 3+3=18. What does 4+4=?

Question: 1 is 3, 3 is 5, 5 is 4, 4 is universal. 2 is 3, 3 is 5, 5 is 4, 4 is universal... how is this possible? (What is the rule to this sequence of numbers?)

Question: 1. A bat and a ball cast $1.10 cents in total. The bat costs one dollar more than the ball. How much does the ball cost? 2. If five machines made five gadgets in five minutes, how much time would it take for 100 machines to make 100 gadgets? 3. The was a lake, it was full with lily pads, each day the lily pads doubled in size, it took 48 days for the lily pads to cover all of the lake how long would it take for the lily pads to cover half of the lake?