By Koh Gui Qing and Ankur Banerjee NEW YORK/SINGAPORE (Reuters) -Global stocks crept higher on Tuesday and the dollar lingered near a five-month low as investors held fast to bets that cooling U.S. inflation will lead the Federal Reserve to cut interest rates next year. Oil prices jumped over 3% earlier in the session to the highest in almost a month, as Middle East strife continues and investor hope possible rate cuts will boost global economic growth and fuel demand. Trading was thin on the day after Christmas with several markets, including those in Australia, Hong Kong, Britain and Germany…