उन पांच प्रतीकों को सामूहिक रूप से क्या नाम दिया गया है जिन्हें हर दीक्षित खालसा सिख को धारण करना अनिवार्य है?

Who among the following Sikh Gurus founded the town and community at Kiratpur Sahib?

Which Sikh Guru is credited with standardizing the script of Punjab into the Gurmukhi script?

In which year was Guru Nanak Dev Ji's 550th birth anniversary (Parkash Purab) celebrated?