<Ul> <Li> On the death of the fifth President (the first to be directly elected), Ong Teng Cheong, in February 2002, even though he did not receive a state funeral; </Li> <Li> On the death of the fourth President, Wee Kim Wee, in 2005; </Li> <Li> On the death of a former Cabinet Minister and Deputy Prime Minister, Goh Keng Swee, who had a state funeral on 23 May 2010; </Li> <Li> On the death of a former Deputy Prime Minister, Toh Chin Chye, who was cremated on 7 February 2012; </Li> <Li> On the death of the first Prime Minister, Lee Kuan Yew, who died on 23 March 2015; </Li> <Li> On the death of 7 pupils, 1 teacher and a guide from Tanjong Katong Primary School due to 2015 Sabah earthquake; </Li> <Li> On the death of the sixth President of Singapore, S.R. Nathan, who died on 22 August 2016; </Li> <Li> On the death of a former Cabinet Minister, Othman Wok, who died on 17 April 2017; </Li> <Li> On the death of a former Cabinet Minister, Jek Yeun Thong, who died on 3 June 2018, flags flown at half mast on 7 June 2018; </Li> </Ul> <Li> On the death of the fifth President (the first to be directly elected), Ong Teng Cheong, in February 2002, even though he did not receive a state funeral; </Li> <Li> On the death of the fourth President, Wee Kim Wee, in 2005; </Li> <Li> On the death of a former Cabinet Minister and Deputy Prime Minister, Goh Keng Swee, who had a state funeral on 23 May 2010; </Li>

Who has the flag been flown at half mast for