Hello room,im confused, planning to travel to Cairo Egypt, and the visa came in 25 days to the expiry date, now I'm face with the challenge if they will allow me at the airport to go,it will expire on the 12th of April, and I'm planning traveling on the 5th or 6th..will they allow me? It's a 3months visa and have been issued since January but the embassy didn't release it and I don't know why..please I need your advise, thank you.

Book a holiday for 5 days, you should be ok. The visa allows you to board the airline, your time spent in the country is determined by the immigration officer in Cairo. It's the same for most visas.

Thank you brother, but one more thing,if I will be going on the 6th,will they allow me? And is it a must I come back on the 12th ? It's my first time so I just wanna be certain.

MackLily:
Thank you brother, but one more thing,if I will be going on the 6th,will they allow me? And is it a must I come back on the 12th ? It's my first time so I just wanna be certain.

Yes you would be allowed in, so long has your return ticket is dated latest the 12/04/2016.
If you don't return on the 12th, from the 13th of April 2016. Your status changes from a legal migrant/tourist to illegal immigrant/overstayer!!!