(Had to add NSFW tag due to brief mentions of adult topics)

Singapore laws by nature discriminate against males and are highly misandrist for example:

-Conscription is mandatory for all able-bodied men only.

-Men do not have the rights to spousal maintenance (alimony) unless they are incapacitated and unable to maintain themselves.

-Single men do not have the right to adopt girls, whilst women can adopt children of either gender.

-Women are not recognised as possible rapists.

‐Having sex and deliberately compromising or lying about contraceptive measures is a male-only offence.

Although the age of consent of 16 applies to both sexes and child sexual assault/exploitation laws are largely gender-neutral, in cases where minors have consensual sex, it is typical for only male minors to be prosecuted .

-Only males (men and boys) are liable for institutional corporal punishment, which comes in the form of caning.

-Female suspects cannot be body searched by male officers except in very narrowly defined circumstances. This does not apply to the reverse.

-In events where obtaining forensic samples and evidence (involving intimate regions) from suspects is necessary, only female staff can be appointed to female suspects. Male suspects are not entitled to the same safeguard, and requests for male staff are at the discretion of the authorities.

-In school, consent must be sought from girls over the age of 10 if they are to be medically examined by a male person. Conversely, consent from boys is not mandatorily prescribed in any circumstances.

-For prison grooming standards, with the exception of Sikhs and Tamils, the hair of male prisoners must be shaved. Female prisoners on the other hand have the liberty to keep their hair if they wish.

-Many laws regarding prostitution, sex trafficking and compelled marriage are gender-specific. For example, it is illegal for one to live on the earnings of a female prostitute but not a male one.

-Fathers are only eligible for 2 weeks of paternity leave. On the other hand, mothers are entitled to 16 weeks.

-Adoptive fathers (be they married or single) are entitled to 2+2 weeks of paid parental leave. On the other hand, adoptive mothers (be they married or single) are entitled to 12 weeks.

-Unmarried biological fathers are not entitled to any paid parental leave. Marital status is not a factor for mothers.

‐Men who have children from extramarital affairs are not entitled to both paid paternity and childcare leave. This does not apply for women.

-Many forms of parental tax relief are only for mothers, no matter what familial arrangement individuals have.

-Unmarried women of any age are entitled to maintenance from the estate of their deceased parents. For men, they are entitled to such maintainence only if their age is 21 and below.

-Free HPV vaccination is only available for girls. Boys who wished to be vaccinated must pay for the full cost.

-Male students are not allowed to keep their hair long (even moderately so) nor are they allowed any ear accessory. Female students on the other hand are allowed both short and long haircuts and to don ear accessories. The same is true for most uniformed personnel (eg. military, police).

-Although not explicit in any law, with everything being equal, care and control (custody in most other areas) are prevalently awarded to the mothers, especially for cases of young children (tender years principle). The court generally cites a landmark ruling from the 1900s, which recognises the maternal bond as irreplaceable.

-Male preschool teachers are not allowed to perform routine care (showering, changing of diapers, dressing) for children. Only female teachers may perform them.

-A person shall not be a citizen of Singapore by virtue of birth if his father was an enemy alien and the birth occurred in a place then under the occupation of the enemy. This seemingly does not apply if the enemy alien is the child's mother.

Does all of this laws that specifically discriminate against males Singapore still somehow got 8th place ranking for the nation with the least gender inequality in the world from the UN

What are the top countries for gender equality?

I would ask why that is but I think we all know why