If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

I shave every day, but my beard stays the same. What am I?

Replace the question mark in the picture below.

A crime was committed at baker street. Ibrahim Dakota who was shot in the stomach was the main suspect. Sherlock questioned the suspect. The conversation started as:
Sherlock: What's your story, Ibrahim?
Ibrahim: I was walking around baker street and suddenly a man from the back shot me. I ran as fast as I could to save my life".
Sherlock: That is enough (and ask the police to arrest him).

Why does Sherlock think he is the murderer?

What word does this rebus represent?

meta meta
meta meta

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?"

While Bella does not know the answer, do you ?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?