What is a smart word for thinking?

Who discovered the right hand thumb rule? Is a banner measured in centimeters or meters? Is it possible increase degree of accuracy by mathematical manipulations? When 40 grams of ammonium nitrate explode 14 grams of nitrogen qnd 8 grams of oxygen form How many grams of water form? Is are a verb or a noun? How do you round 1.005 to two significant figures? What is the product of 7a and 3a? How do you remove the half shaft from the tran-saxle on an 1989 Subaru gl wagon Do you need to disassemble it piece by piece Or am I missing something simple? How many times can 12 go into 48? What is the meaning of the name Dimas? What do plus and minus mean when used in reference to fungi? How many times can 8 go into 120? How many 6 number combination are there when each digit is 0-9? A ray is a part of a line with one endpoint? What are the prime numbers that evenly divide 297? What is the bottom half of the fault called? How many months is 28 weeks? What percentage is 197 0f 215? What provides a measure of central location for the data? What is a perfict square?