* Biden lifts limit on refugees allowed into US
* Congressional debate set to begin on Biden’s economic plan
* India’s pandemic worsens as total Covid-19 cases reported surpasses 20 million
* Warren Buffett names successor to run Berkshire Hathaway
* Global manufacturing activity rebounded less than forecast in March
* US Mfg PMI continued to rise in April but ISM Mfg Index unexpectedly slipped: