In the first attack, which took place overnight in the city of Hebron, two Palestinians stabbed an Israeli soldier before being shot dead, the army said in a statement obtained by AFP.
"Two assailants stabbed a soldier in Hebron. In response to the threat, forces fired at the attackers, resulting in their death."
Later, in the settlement of Ofra, in the northern West Bank, an attacker drove a car at Israeli soldiers, injuring two of them. The driver was fatally shot, an army statement said.
"A Palestinian rammed his vehicle at IDF (Israel Defense Forces) soldiers. In response forces on site fired at the assailant."
Hours earlier and just 12 miles away, a Palestinian stabbed and wounded an Israeli soldier before being shot dead.
"The assailant exited his vehicle and stabbed the soldier in the neck" at a checkpoint, a statement said.
Since October 1, almost daily attacks and clashes between Palestinians and Israeli soldiers, along with violence between Palestinians and Israeli settlers, have killed 109 Palestinians (including an Israeli Arab), 17 Israelis, an American and an Eritrean, according to AFP.
Palestinians have become frustrated over decades of failed peace talks and the ongoing occupation of the West Bank and east Jerusalem.