I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

Spot 5 differences in two Christmas tree below:

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

How many letters are in the alphabet?

Can you solve the photo plexer logic ?

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?