Questions

soundex()
The soundex() function calculates the soundex key of a string. A soundex key is a four character long alphanumeric string that represent English pronunciation of a word. he soundex() function can be used for spelling applications.
< ?php
$str = "hello";
echo soundex($str);
? >

metaphone()
The metaphone() function calculates the metaphone key of a string. A metaphone key represents how a string sounds if said by an English speaking person. The metaphone() function can be used for spelling applications.
< ?php
echo metaphone("world");
? >

Refer National symbols

Tips :

Integrity-being honest and believability and conviction- is one of concrete leadership abilities. The value and morals in personal behavior are the necessaries with an excellent leader and these values and morals need to be brought into organizational training and activities. A successful leader is the one who uses his/her conviction most efficiently. Leaders do not loose confidences or expose potentially dangerous information if they are close with their employees and they are the honest symbols.

Yaounde is the capital of Cameroon

Aluminium being a good conductor of heat conducts away the heat from the substance quite easily and causes quick freezing.

 It can be possible in only B.C. i.e, Before Christ. That was about 2000 years ago.

 Given, 

 In 1990 B.C = 2000 + 1990 = 3990 years ago, a person is 15 years Old  

=> In 1995 B.C = 2000 + 1995 = 3995 years ago, the same person will be 10 years Old 

Therefore, In 2000 B.C = 2000 + 2000 = 4000 years ago, the same person will be 5 years Old.